• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PURPOSE: A method for selecting a TV channel is provided to comprise a pre-channel key and a post-channel key, and to store channels only which are maintained for more than a predetermined time as channel information by using up/down keys, thereby easily retrieving/converting channels. CONSTITUTION: A user turns on TV by inputting a power key(S100). A final channel is displayed on a TV screen(S110). If a number key or an up/down key is inputted, a channel relative to the inputted key is converted(S120-1,S120-2). If the inputted key is the number key, the converted channel is stored in a current channel area of storages(S130-1). If the up/down key is inputted, controllers calculate a maintenance time of the converted channel(S130-2), and store the converted channel in the current channel area only when the maintenance time is at more than a setup value(S140-2). If the inputted key is a pre-/post-channel key, the controllers store the pre-channel key in a channel area of a currently watching channel(S120-3). The channel is converted, and is stored in a current channel area(S130-3). If the post-channel key is pressed, the controllers store the channel in a previous channel area(S120-4), and store the converted channel in the current channel area(S130-4).
    公开号:KR20040065658A
    申请号:KR1020030002753
    申请日:2003-01-15
    公开日:2004-07-23
    发明作者:장원석
    申请人:주식회사 알티캐스트；
    IPC主号:
    专利说明:

    TV Channel Tuning Method {Method For Searching TV Channel}
    [19] The present invention relates to a TV channel tuning method. More particularly, the present invention relates to a TV channel tuning method, which includes a previous channel key and a subsequent channel key, so that a viewer can easily search for and watch a favorite channel when searching for a channel. It is about.
    [20] In general, a TV broadcast is a TV broadcast program transmitted from a TV station through an antenna, and separates a video signal, a sync signal, and an audio signal from a TV receiver, and applies a signal to a speaker and a screen to play a video signal and an audio signal. I say to let you.
    [21] Recently, with the development of communication technology, TV broadcasting has been diversified, and with the advent of satellite TV broadcasting and cable TV broadcasting, the number of channels that a viewer can select has become a problem.
    [22] To tune or switch channels on the current TV, enter the channel number directly via the remote control or keypad on the TV, use the channel up-down key to navigate up and down the channel, and use the previous channel key to There is a way to move to the channel that was watched right before the channel being watched.
    [23] It is cumbersome for viewers to manually enter channel numbers while watching TV, and viewers typically search for channels using channel up-down keys or previous channel keys.
    [24] However, in the case of cable TV, satellite broadcasting, etc., since the number of channels is more than 60, 70, it is inconvenient to press the channel up key several times in order to move to 30 times, for example, 10 times with the channel up and down keys.
    [25] In addition, the previous channel key can only move to the channel immediately before the channel currently being watched. For example, if you frequently change the channel you like to watch frequently, the previous channel cannot be used and you need to enter the channel number manually. There is a problem.
    [26] Accordingly, there is an increasing demand for a TV channel search method that eliminates the inconvenience of the conventional TV channel search method and makes it possible to search several channels more conveniently.
    [27] The present invention has been made to achieve the above object, and the first object of the present invention is to provide a previous channel key and the next channel key, it is possible to more easily search and switch a plurality of channels that were watched TV It is to provide a channel tuning method.
    [28] It is a second object of the present invention to provide a TV channel tuning method for displaying a channel history on a TV screen so that a viewer can select a desired channel from the displayed channel history.
    [29] It is a third object of the present invention to provide a TV channel tuning method that makes it easier to search for a channel that has been watched by storing only channels that are maintained for a predetermined time or more when searching for a channel using an up-down key. .
    [1] 1 is a block diagram showing the internal configuration of a TV in which the present invention is performed;
    [2] Figure 2 is a block diagram showing the internal configuration of a set-top box in which the present invention is carried out,
    [3] 3 is a flowchart illustrating a process of performing a TV channel tuning method according to a first embodiment of the present invention using a channel shift key;
    [4] 4 is a flowchart illustrating a process of performing a TV channel tuning method according to a second embodiment of the present invention using a channel shift key;
    [5] 5 is a diagram conceptually showing channel history data stored in a storage unit in the first embodiment of the present invention;
    [6] 6 is a diagram conceptually showing a previous channel, a current channel, and a next channel data stored in a storage unit in the first embodiment of the present invention;
    [7] FIG. 7 conceptually illustrates channel data stored in the channel history area 100 according to the second embodiment of the present invention.
    [8] 8 is a flowchart illustrating a process of performing a TV channel tuning method according to a third embodiment of the present invention using a channel shift key;
    [9] 9 is a screen illustrating that channel history information is displayed on a TV according to the third embodiment of the present invention;
    [10] 10 is a plan view showing an embodiment of a remote controller used in the present invention.
    [11] <Brief description of the major reference numerals>
    [12] 10, 31: tuner, 13: A / V signal processing unit,
    [13] 15: speaker, 17: display unit,
    [14] 19, 84: storage unit, 21, 86: control unit,
    [15] 70: system interface, 72: demux,
    [16] 74: video decoder, 76: audio decoder,
    [17] 81: video and audio processing unit, 88: remote control interface,
    [18] 90: external interface.
    [30] According to an aspect of the present invention for achieving the above object, in the method for tuning a channel in a TV, receiving channel tuning information from a user, if the input channel tuning information is a numeric key or up-down key, input Switching to a channel corresponding to the selected channel presetting information, and storing the channel currently being watched in the previous channel region; if the input channel presetting information is the previous channel key, extracts the previous channel from the previous channel region and stores the current channel in the current channel region; A TV channel tuning method may be provided, comprising: switching to the extracted channel and storing a channel watched before the extracted channel in a previous channel region.
    [31] According to a second aspect of the present invention, in a method for tuning a channel in a TV, receiving channel tuning information from a user; when the input channel tuning information is a numeric key or an up-down key, a channel corresponding to the channel tuning information Switching to the channel, storing the converted channel in a channel history area, and if the input channel selection information is a previous channel key, extracting a channel stored in a channel history area before a currently viewed channel and converting the extracted channel to the extracted channel. A TV channel tuning method may be provided, comprising the step of: a.
    [32] According to a third aspect of the present invention, in the method of tuning a channel in a TV, receiving channel tuning information from a user; when the input channel tuning information is a numeric key or an up-down key, the channel corresponding to the input channel tuning information Switching to a channel and storing the channel currently being watched in a storage unit; if the input channel selection information is a previous channel key, displaying channel information stored in the storage unit on a screen; Receiving selection information; And storing the input selection channel in a storage unit and switching the channel.
    [33] Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.
    [34] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    [35] 1 is a block diagram showing the internal configuration of a TV in which the present invention is carried out. As shown in FIG. 1, a TV to which the present invention is implemented includes a tuner 10, an A / V signal processor 13, a speaker 15, a display unit 17, a storage unit 19, a controller 21, It consists of the key input part 23 and the infrared receiver 25.
    [36] Since the tuner 10, the A / V signal processor 13, the speaker 15, and the infrared receiver 25 are the same as those of a normal digital TV, description thereof will be omitted.
    [37] The key input unit 23 is for inputting various control signals such as channel selection, channel number input, previous channel key, or subsequent channel key.
    [38] The storage unit 19 stores a driving module for driving a TV and history data (previous channel and subsequent channel) of a channel watched by a user, and includes a nonvolatile device such as a ROM, an EEPROM, a flash memory, and the like, which store the driving module. It is composed of volatile memory such as static RAM and dynamic RAM for temporarily storing the history of the channel watched by the viewer while the TV is loaded and the driving module when the memory and the driving module are executed. In addition, it is also possible to store the history data of the channel in a flash memory or a hard disk (HDD) or the like so that the history data of a previously viewed channel can be used for channel selection even when the power is turned on again.
    [39] The control unit 21 is for controlling the above-described configurations. In addition to the functions of the conventional control unit 21, the control unit 21 stores the channels watched by the user in the storage unit 19 before the previous channel, the current channel and the subsequent channel, and the channel history data. When the user inputs the channel shift key, the user switches the channel to the previous channel or the subsequent channel according to the type of the input key.
    [40] 2 is a block diagram showing the internal configuration of a set-top box in which the present invention is carried out. As shown in FIG. 2, the system interface 70, the demux 72, the video and audio decoders 74 and 76, the video and audio processing unit 81, the storage unit 84, the control unit 86, and a remote control interface. 88 and an external interface 90.
    [41] The system interface 70 receives an image signal and an audio signal.
    [42] The video decoder 74 receives the video signal separated by the demux 72, and the audio decoder 76 receives the voice signal separated by the demux 72 to expand the MPEG-2 compressed data. 4M to 15Mbps of processing capacity is required. However, the present invention is not limited to the format of data to be decoded to MPEG-2, and other various compression formats such as MPEG-4 and MPEG-7 can be applied.
    [43] The video and audio processing unit 81 is composed of a graphic overlay 78, a graphic processing unit 80, and an encoder 81, and supports display and dialog processing of a graphic user interface.
    [44] The storage unit 84 stores execution programs for executing the above components and history data of channels watched by the user, and includes a nonvolatile memory such as a ROM, an EEPROM, a flash memory, etc., which stores a driving module and an MPEG module. And a volatile memory such as a static RAM and a dynamic RAM for loading the driving module and the MPEG module when the driving module and the MPEG module are executed and temporarily storing the history of the channel watched by the viewer while watching TV. In addition, as described above, the channel history data can be stored in a flash memory, a hard disk (HDD), or the like.
    [45] Like the control unit 21 of FIG. 1, the control unit 86 switches the channel to the previous channel or the subsequent channel according to the input key when the user inputs the previous channel key or the subsequent channel key in addition to the normal function. Play a role.
    [46] The external interface 90 is for connecting with an external device, and is mounted with IEEE1394, PCMCIA, USB, and the like.
    [47] In the following description, terms used in each embodiment will be defined before describing each embodiment of the channel selecting method.
    [48] The channel history area 100 refers to an area where channel history data in the storage unit is stored, and the previous channel area 110, the current channel area 120, and the subsequent channel area 130 each represent a previous channel data and a current in the storage unit. Refers to an area where channel data and subsequent channel data are stored. In addition, the numeric key refers to channel selection input through the numeric input on the remote control, the up-down key refers to the channel up or channel down button on the remote control, and the previous channel and the subsequent channel key are input buttons provided on the remote control, so that the viewer can move to the previous channel. And a button for moving to a channel watched later.
    [49] 3 is a flowchart illustrating a process of performing a TV channel tuning method according to the first embodiment of the present invention using a channel shift key.
    [50] First, the user turns on the TV by inputting a power key through the key input unit 23 or the remote controller 49 (S100).
    [51] When the TV power is ON, the final channel is displayed on the TV screen (S110). The last channel refers to a channel that was being watched when the TV was turned off. The final channel information extracted by the control unit 21 and 86 stored in the storage units 19 and 43 is tuner. Send to (10, 31).
    [52] Thereafter, a key for channel change is input. When a numeric key or an up-down key is input, the channel is switched to a channel corresponding to the input key (S120-1, 2).
    [53] When the input key is a numeric key, the converted channel is stored in the current channel area 120 of the storage units 19 and 84 (S130-1). When the up-down key is input, the controllers 21 and 86 The duration of the switched channel is calculated (S130-2), and the switched channel is stored in the current channel region 120 only when the duration is greater than or equal to the set value (S140-2).
    [54] If the input key is a previous / post channel key, the controllers 21 and 86 determine whether the input key is a previous channel key or a subsequent channel key. 130) (S120-3).
    [55] Next, the previous channel is extracted from the previous channel region 110 to switch channels, and the channel is stored in the current channel region 120 (S130-3).
    [56] If the channel key is pressed afterwards, the channel currently being watched is stored in the previous channel region 110 (S120-4), the channel is switched to the channel number stored in the subsequent channel region 130, and the switched channel Is stored in the current channel region 120 (S130-4).
    [57] 4 is a flowchart illustrating a process of performing a TV channel tuning method according to a second embodiment of the present invention using a channel shift key.
    [58] When the TV power is ON, the final channel is displayed on the TV screen (S200, 210).
    [59] Then, a key for channel change is input, and when a numeric key or an up-down key is input, the channel is switched to a channel corresponding to the input key (S220-1).
    [60] In this case, the controller 21 or 86 determines whether the input key is duplicated with data previously stored in the channel history area 100, and in the case of overlapping, the controller 21, 86 does not store the current channel in the channel history area 100. Ends the process and proceeds to the next step if there is no duplication.
    [61] If the input key is a numeric key, the controllers 21 and 86 store the switched channel in the channel history area 100 (S230-1). If the up-down key is input, the controllers 21 and 86 store the holding time of the switched channel. In operation S230-2, the switched channels are sequentially stored in the channel history area 100 only when the holding time is greater than or equal to the set value (S230-3).
    [62] If the input key is a previous / post channel key, the controllers 21 and 86 determine whether the input key is a previous channel key or a subsequent channel key. Switch to the channel stored in 100 (S240-1).
    [63] After the channel key is pressed, the channel is switched to the channel stored in the channel history area 100 after the currently viewed channel (S240-1).
    [64] As described above, unlike the first embodiment, the second embodiment uses a channel history area 100 instead of the previous channel area 110, the current channel area 120, and the subsequent channel area 130. The difference is that the switching is not performed and the duplicate channel already stored in the channel history area 100 is not stored.
    [65] FIG. 5 is a diagram conceptually showing channel history data stored in the channel history area 100 in the first embodiment of the present invention, and FIG. 6 is a diagram illustrating a storage unit (in the first embodiment of the present invention). FIG. 19 is a diagram conceptually showing previous channel, current channel, and subsequent channel data stored in the previous channel region 110, the current channel region 120, and the subsequent channel region 130, respectively. Hereinafter, with reference to FIGS. 5 and 6, the first embodiment will be described with a more specific example.
    [66] <First Embodiment>
    [67] As illustrated in FIG. 5, a case in which the viewer watches the channels in the order of 11-> 12-> 10 will be described as an example.
    [68] If you watch 10 times and input 14 by pressing a number key, 10 is stored in the previous channel area 110, the channel moves to 14, and 14 is stored in the current channel area 120. Then, number 14 is stored next to number 10 in the channel history area 100.
    [69] If the up key is pressed while watching number 10, the controllers 21 and 86 move to number 11, and then calculate the elapsed time from the time when the up key is pressed to set a preset value (for example, 1 minute). 10 or more is stored in the previous channel region 110, and 11 is stored in the current channel region 120. In the channel history area 100, 11 is stored next to 10.
    [70] If the previous channel key is input after moving to No. 14 by inputting a numeric key, the controller 21 and 86 stores No. 14 in the subsequent channel area 130 and No. 12 is in the previous channel area. Save to 110. 10 is stored in the current channel area 120 and 10 is displayed on the TV screen. At this time, the data stored in the channel history area 100 is not changed.
    [71] If the previous channel key is pressed once again, as shown in FIG. 6, 11 times are stored in the previous channel region 110, 12 times in the current channel region 120, and 10 times in the subsequent channel region 130. No. 12 is displayed on the TV screen, and at this time, the data stored in the channel history area 100 remains unchanged.
    [72] If a new channel number 15 is input next, 12 times are stored in the previous channel region 110, 15 times in the current channel region 120, and 10 times in the subsequent channel region 130, and 15 is a TV. It is displayed on the screen, and number 15 is stored between numbers 12 and 10 of the channel history area 100. However, the channel data storage method when a new channel number is input can be modified in addition to the above method. For example, when the number 15 is input, the number 15 may be stored after the number 12 of the channel history area 100 and the channel data of number 12 or less, that is, the number 10 and the number 14 may be deleted.
    [73] In addition, although not shown in FIG. 3, if a subsequent channel key is input in a state in which data is not stored in a subsequent channel area, there is no later channel on the TV screen, and the channel currently being viewed is continuously displayed on the screen. Thus, in this case, the stored channel data remains unchanged. The same is true for the previous channel key.
    [74] FIG. 7 conceptually illustrates channel data stored in the channel history areas 100 and 100 according to the second embodiment of the present invention. Hereinafter, the second embodiment will be described in more detail with reference to FIG. 7.
    [75] Second Embodiment
    [76] As in the first embodiment, a case where a user views a channel in the order of 11-> 12-> 10 will be described with an example. In the current channel history area 100, channel data are stored in the order of 11, 12, and 10, and since the pointer 101 points to 10, the controller 21, 86 may recognize that the currently viewed channel is 10. Can be.
    [77] If the user watches 10 times and inputs a previous channel key, the channel history data stored in the channel history area 100 does not change, and the channel is switched to the number 12 previously stored 10 times indicated by the pointer 101. do.
    [78] Here, if the user inputs number 14 with the numeric keys, the controllers 21 and 86 compare the input numeric keys with the channel history information stored in the channel history area 100 to determine whether the input numeric keys are duplicate channels. If it is determined that the new channel is not duplicated, the input number key 14 is sequentially stored 10 times in the channel history area 100, and then the channel is switched to number 14.
    [79] Therefore, when the user inputs the previous channel key, the channel is switched to the number 10 which is the channel information stored in the channel history area 100 just before the number 14. That is, according to the first embodiment, the channel is switched to No. 12 in the above case, but the channel is switched to No. 10 according to the second embodiment.
    [80] If the viewer enters the up key after switching to No. 14, the controllers 21 and 86 move to No. 15, and recognize that No. 15 is the new channel and display the elapsed time from when the up key is pressed. If it is calculated and equal to or more than a preset value (for example, 1 minute or 5 minutes), the number 15 is stored in the channel history area 100.
    [81] At this time, when the channel key is input later, as described above, there is no later channel on the TV screen, and the channel currently being watched is continuously displayed on the screen. Thus, in this case, the stored channel data remains unchanged.
    [82] 8 is a flowchart illustrating a process of performing a TV channel tuning method according to a third embodiment of the present invention using a channel shift key.
    [83] Third Embodiment
    [84] Referring to FIG. 8, when a user inputs a power key through the key input unit 23 or the remote controller 49 and the TV power is turned on, the final channel is displayed on the TV screen (S300 and 310).
    [85] Here, when the numeric key or the up-down key is input, after switching to the input channel, the current channel information is stored in the storage units 19 and 84 (S320-1 and 320-2).
    [86] If the previous channel key is input, the channel history information stored in the storage units 19 and 84 is displayed on the TV screen (S330-1).
    [87] After the user checks the channel history information displayed on the TV screen and selects a desired channel number (S330-2), the TV channel is switched to the selected channel and the selected channel information is stored in the storage units 19 and 84 (S330). -3).
    [88] In this embodiment, the channel history information is displayed when the previous channel is pressed, but it is also possible to have a separate channel history information key or to display the channel history information when the channel is pressed afterwards.
    [89] FIG. 9 is a screen illustrating channel history information being displayed on a TV according to the third embodiment of FIG. 8.
    [90] Referring to FIG. 9, when the user inputs a previous channel key in FIG. 7, a screen as shown in FIG. 9 is displayed. In other words, after the user turns on the TV, the channel history that the user watched is displayed in the order stored in the storage units 19 and 84.
    [91] The user can select a desired channel from the displayed channel information.
    [92] 10 is a plan view showing an embodiment of a remote controller used in the present invention.
    [93] As shown in FIG. 10, the remote controller used in the present invention includes a previous channel key 61 and a subsequent channel key 63 in addition to the control keys provided in the general remote controller. That is, when the previous channel key 61 and the subsequent channel key 63 provided in the remote controller are pressed, channel tuning is performed as described above.
    [94] In other words, when the previous channel key 61 is pressed, the channel viewed before the currently viewed channel is tuned, and when the channel key 63 is pressed afterwards, the channel viewed after the current channel is tuned. In the present embodiment, the case in which both the previous channel key 61 and the subsequent channel key 63 are provided has been described, but only the previous channel key 61 may be provided.
    [95] Although the present embodiment has been illustrated and described with reference to the TV channel selection method, the present invention is not limited thereto, and the present invention can be applied to various channel selection methods such as radio and radio.
    [96] In addition, in the present embodiment, when the TV power is turned on, the final channel is displayed on the TV screen, but besides, the user may set a favorite channel or automatically set a channel having the most viewing time as a favorite channel. When the TV is turned on, it is also possible to display the set channel or the channel with the most viewing time on the screen.
    [97] According to the TV channel tuning method according to the present invention as described above, by providing a previous channel key and a subsequent channel key, it is possible to provide a TV channel tuning method that can more easily search and switch a plurality of channels that were watched. There is.
    [98] In addition, it is possible to provide a TV channel tuning method for displaying a channel history on a TV screen so that a viewer can select a desired channel from the displayed channel history.
    [99] In addition, it is possible to provide a TV channel tuning method that makes it easier to search for a channel that has been watched by storing only channels that are maintained for a predetermined time or more during channel search using the up-down key.
    [100] Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the spirit of the invention.
    权利要求:
    Claims (8)
    [1" claim-type="Currently amended] In the method of tuning channels on TV,
    Receiving channel channel selection information from a user;
    If the channel presetting information entered is numeric keys or up-down keys,
    Switching to a channel corresponding to the input channel selection information and storing a channel currently being viewed in a previous channel region;
    If the channel presetting information entered is the previous channel key,
    Extracting a previous channel from a previous channel region, storing the previous channel in a current channel region, and switching to the extracted channel; And
    And storing the channel watched before the extracted channel in a previous channel region.
    [2" claim-type="Currently amended] The method of claim 1,
    If the channel presetting information entered is the previous channel key,
    Storing the channel currently being watched in a later channel area; And
    If the channel presetting information entered is a later channel key,
    And storing the channel currently being watched in a previous channel region, extracting a later channel from a later channel region, storing the current channel in the current channel, and converting the channel into an extracted channel.
    [3" claim-type="Currently amended] The method of claim 1,
    If the channel selection information is an up-down key, the step of switching channels is
    Switching to a channel corresponding to input channel tuning information corresponding to the up-down key;
    Calculating a holding time of the switched channel; And
    And storing the channel currently being watched in the current channel region when the calculated holding time is equal to or greater than a preset value.
    [4" claim-type="Currently amended] In the method of tuning channels on TV,
    Receiving channel channel selection information from a user;
    If the channel presetting information entered is numeric keys or up-down keys,
    Switching to a channel corresponding to the channel selection information;
    Sequentially storing the switched channels in a channel history area; And
    If the channel presetting information entered is the previous channel key,
    And extracting a channel stored in a channel history area before the currently viewed channel and converting the channel into the extracted channel.
    [5" claim-type="Currently amended] The method of claim 4, wherein
    If the channel presetting information entered is a later channel key,
    And extracting a channel stored in a channel history area after the channel currently being viewed and converting the channel into the extracted channel.
    [6" claim-type="Currently amended] The method of claim 4, wherein
    If the channel selection information is an up-down key, storing the switched channel in a channel history area
    Calculating a holding time of the switched channel; And
    And storing the currently viewed channel in a channel history area when the calculated holding time is equal to or greater than a preset value.
    [7" claim-type="Currently amended] The method of claim 4, wherein
    The storing of the switched channel in a channel history area
    And storing the input channel selection information in the channel history area only when the input channel selection information does not overlap with a channel previously stored in the channel history area.
    [8" claim-type="Currently amended] In the method of tuning channels on TV,
    Receiving channel channel selection information from a user;
    If the channel presetting information entered is numeric keys or up-down keys,
    Switching to a channel corresponding to the input channel selection information and storing the channel being watched in a storage unit;
    If the channel presetting information entered is the previous channel key,
    Displaying channel information stored in a storage unit on a screen;
    Receiving channel selection information among channel information displayed on a screen from a user; And
    And storing the input selection channel in a storage unit and switching the channel.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2003-01-15|Application filed by 주식회사 알티캐스트
    2003-01-15|Priority to KR1020030002753A
    2004-07-23|Publication of KR20040065658A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1020030002753A|KR20040065658A|2003-01-15|2003-01-15|Method For Searching TV Channel|
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