• 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:
    Method for performing announcements in a means of transport that has an announcement device (12) having at least one loudspeaker (14) and an entertainment device (16), having the following steps: a) an announcement start signal (28) is sent from the announcement device (12) to the entertainment device (16) at the beginning of an announcement, b) an interruption to the reproduction of the reproduction appliance (18) is prompted by the entertainment device (16) when the announcement start signal (28) is received, c) the announcement is reproduced as an audible announcement signal (32) via the announcement loudspeaker (14), d) continuation of the reproduction of the reproduction appliance (18) is prompted by the entertainment device (16) when an announcement end signal is received or at the end of reception of the announcement start signal from the announcement device, characterized by detection of an audio signal (30) that is output by the announcement loudspeaker (14) by the entertainment device (16), wherein the reproduction of the reproduction appliance (18) is automatically interrupted after the audio signal (30) is detected.
    公开号:AU2013220613A1
    申请号:U2013220613
    申请日:2013-01-23
    公开日:2014-08-28
    发明作者:Peter HOMMEL；Jorg Liebe
    申请人:Lufthansa Systems AG；
    IPC主号:H04H20-62
    专利说明:
    The invention relates to a method for performing announcements in a means of transport, such as in an airplane, a bus, a ship, a train etc. In such means of transport it is known to entertain passengers via entertainment devices by playing back video/audio data via playback devices. A playback device may be a monitor installed in the passenger cabin for the playback of vid eo/audio data, with a headphone connector being available to each passenger, e.g. in the armrest of the passenger seat, for the playback of associated audio data via headphone. As an alternative or in addition, seat monitors fixedly asso ciated to a respective passenger seat are conceivable as playback devices, the associated audio playback also being performed through a headphone connector integrated in the passenger seat. In various means of transport, some situations arise that make it necessary to perform announcements for the passengers so as to inform them about certain events of particular importance. Especially in danger situations it is of particular importance to address announcements to the passengers. In the event of such announcements, it is necessary to interrupt the playback of video/audio data on the playback devices of the entertainment device at least for the time of the announcement, so that the announcement is not interfered with and each passenger can be reached. For this purpose it is known to transmit an announcement start signal from the announcement means to the entertainment device at the beginning of an announcement. The transmission announcement start signal can be performed by wire, for example, from a server of the an nouncement means to the data server of the entertainment device. When it has received the announcement start signal, the entertainment device automatically 2 causes an interruption of the playback on the playback devices. For this purpose, the data server of the entertainment device must send a corresponding playback stop signal to each playback device. Typically, the transmission of the vid eo/audio data to be reproduced is performed by wire from the data server of the entertainment device to a router and, in a wireless manner, from there to each playback device by radio. The transmission path of the signals from the announcement device to the enter tainment device for the interruption of the playback on a playback device is er ror-prone. If the data server of the entertainment device fails, the announcement start signal cannot be detected by the entertainment device. If the router of the entertainment device malfunctions, the playback stop signal cannot be transmit ted from the data server to the playback devices. Further, radio signal interfer ences can impair signal transmission. Summarizing, there is a risk that the play back of video/audio data via the playback devices is not interrupted during an announcement and that passengers will not become aware of the announcement. It is an object of the present invention to provide an improved method for per forming announcements in a means of transport. The method of the present invention is defined by claim 1. According to the method, an audio signal is outputted via the one or more an nouncement loudspeakers, which signal is detected by the entertainment device, the detection of the audio signal by the entertainment device automatically prompting an interruption of the playback on each playback device. Thereby, the playback device can be prompted to interrupt playback even if the data server or the router of the entertainment device fail and/or radio signal interferences im pair signal transmission. The playback device is typically equipped with a micro phone of its own to receive the audio signal emitted by the announcement loud speakers.
    3 The audio signal may be the announcement signal itself. Here, each playback device is provided with an audio signal analyzer which is connected to the micro phone of the playback device and analyses and identifies the announcement sig nal, and in particular differentiates this signal from other audio signals such as noises in the passenger cabin or passenger voices. When the reception of the announcement signal by the playback device ends, playback is continued. The audio signal analyzer can detect, for example, the carrier frequency of the an nouncement signal generated by the announcement loudspeaker and/or the total distortion of the acoustic harmonic of the announcement signal. As an alternative or in addition, the audio signal emitted from the announcement loudspeaker and detected by the entertainment device may be an acoustic pre signal emitted before the beginning of the announcement. For example, the pre signal can be a two-channel sound that interrupts the playback. After the an nouncement has ended, the announcement loudspeaker may then emit a post signal, e.g. in the form of a specific terminal sound, which is detected by the en tertainment device and prompts the continuation of the playback by the playback device. Preferably, the pre-signal and the post-signal are each detected by a mi crophone of the playback device. The announcement device can comprise an announcement memory, e.g. in the form of a data server containing stored announcements , and/or may be provid ed with a microphone for recording announcements spoken by a person, such as a conductor or a flight attendant. Advantageously, the reception of the audio signal by the entertainment device or by the playback device also prompts the display of a visual indication on the playback device. The optical indication indicates the performance of an an nouncement, so as to raise the attentiveness of a passenger. As an alternative or in addition, the playback device can be provided with a speech recognition device that converts the recorded announcement signal into a text that is outputted on the playback device. Thereby, passengers with impaired hearing are also enabled to comprehend the content of an announcement.
    4 As an alternative or in addition, the playback device emits a detected announce ment signal as an acoustic signal in order to enhance the audibility of the an nouncement, e.g. via the headphone connector in a passenger seat. The following is a detailed description of an embodiment of the invention with reference to the Figure. The Figure is a schematic illustration of an arrangement for performing the method of the invention. The embodiment relates to announcements made in airplanes. The airplane is provided with an announcement device 12 comprising an announcement memory 22, an announcement microphone 24 and an announcement loudspeaker 14. The announcement memory 22 can store typical announcements. Further, the micro phone 24 allows the recording of announcement played back in real time via the announcement loudspeaker 14. Further, a plurality of announcement loudspeak ers 14 are provided in the airplane cabin. The airplane further comprises an entertainment device 16 comprising at least one data server 20, a plurality of WLAN routers 26 and a plurality of playback devices 18. The data servers 20 store video films, music data and video games that can be selectively called by each individual playback device 18. Each pas senger seat has an associated playback device 18 in the form of a so-called in seat monitor integrated in the backrest of the respective frontward passenger seat, Further, each playback device 18 has a headphone connector and a head phone, not illustrated in the Figure, for the playback of the associated audio da ta. The data played back via the playback devices 18 are first transmitted by wire from the data server 20 to the WLAN routers 26. The WLAN routers 26 convert the data into a radio signal that is transmitted to corresponding radio receivers of the playback devices. As an alternative or in addition, the transmission from the data server 20 to the playback devices 18 can also be performed wirelessly.
    5 Once a flight attendant wishes to make an announcement to the passengers us ing the microphone 24, the announcement memory 22 first sends an announce ment start signal 28, e.g. in the form "PA is in progress" (PA: Public Announce ment to the data server 20 of the entertainment device 16. The data server 20 transmits this signal to each playback device 18 via the WLAN routers 26 in order to interrupt the playback there and to display an optical indication "PA is in pro gress". The announcement memory 22 simultaneously sends the announcement signal to the announcement loudspeakers 14 for output, the loudspeakers outputting the announcement signal 32 in an acoustic form, Before the announcement loud speakers 14 emit the announcement signal 32, the announcement memory 22 first prompts the emission of a pre-signal 30 in the form of a second audio sound outputted via the announcement loudspeakers 14. Each playback device 18 is provided with a microphone. Upon reception of the pre-signal 30 by the micro phone of a playback device 18, the playback device 18 automatically interrupts the playback of video/audio data. For this purpose, each playback device 18 is provided with an audio signal processor. Upon reception of the pre-signal, the message "PA is in progress" is displayed on the monitor of the playback device 18. The announcement signal 32 detected by the loudspeaker of a playback device 18 is transmitted to the headphones of the playback device 18 via the audio sig nal processor of the playback device. Moreover, it is particularly advantageous, if the audio signal processor includes speech recognition that converts the speech of the announcement signal 32 into text outputted on the monitor of the play back device 18 by the audio signal processor. When the announcement has ended, the data memory 20 sends a post-signal in the form of a terminal sound of a certain frequency via the announcement loud speakers 14. When the post-signal is received through the microphone of a play back device 18, the latter prompts the continuation of the video/audio data play back.
    6 The audio signal processor of each playback device 18 is further able to detect the carrier frequency, i.e. the envelope of the announcement signal 32 emitted by the announcement loudspeakers 14 and to differentiate, based on the carrier frequency, between the announcement signal 32 and other acoustic signals such as passenger voices or engine noises. In addition or as an alternative, the audio signal processor of each playback device 18 can be configured to detect the total distortion of the acoustic harmonic of the loudspeakers 14 (THD: Total Harmonic Distortion) in order to differentiate between the announcement signal and other noises. As soon as the audio signal processor of the playback device 18 detects the end of the reproduction of an announcement signal 32, it prompts the playback de vice 18 to continue the video/audio data playback.
    权利要求:
    Claims (11)
    [1] 1. A method for performing announcements in a means of transport that has an announcement device (12) having at least one loudspeaker (14) and an entertainment device (16), having the following steps: a) an announcement start signal (28) is sent from the announcement device (12) to the entertainment device (16) at the beginning of an announcement, b) an interruption to the playback of the playback device (18) is prompted by the entertainment device (16) when the announcement start signal (28) is received, c) the announcement is played back as an audible announcement sig nal (32) via the announcement loudspeaker (14), d) continuation of the playback of the playback device (18) is prompted by the entertainment device (16) when an announcement end signal is received or at the end of reception of the announcement start sig nal from the announcement device, characterized by detection of an audio signal (30) that is output by the announcement loud speaker (14) by the entertainment device (16), wherein the playback of the playback device (18) is automatically interrupted after the audio signal (30) is detected.
    [2] 2. The method of claim 1, characterized in that the audio signal (30) is the announcement signal (32) and is detected by an audio signal analyzer and is differentiated from other noises, the playback being continued at the end of the audio signal reception. 8
    [3] 3. The method of claim 2, characterized in that the audio signal analyzer analyses the carrier frequency of the announcement signal (32) generated by the announcement loudspeaker.
    [4] 4. The method of claim 2 or 3, characterized in that the audio signal analyzer detects the total distortion of the acoustic harmonic of the announcement signal (32).
    [5] 5. The method of one of the preceding claims, characterized in that the en tertainment device (16) detects the audio signal (30) via a microphone of a playback device (18).
    [6] 6. The method of one of the preceding claims, characterized in that the audio signal (30) is a pre-signal sent via the announcement loudspeaker (14) be fore the beginning of the announcement, wherein, after the end of the re production, the announcement loudspeaker (14) emits a post-signal that is detected by the entertainment device (16) and prompts the playback de vice (18) to continue playback.
    [7] 7. The method of one of the preceding claims, characterized in that the an nouncement device (12) comprises an announcement memory (22) with stored announcements and/or a microphone (24) for recording an an nouncement spoken by a person.
    [8] 8. The method of one of the preceding claims, characterized in that the vid eo/audio data are transmitted from a data server (20) of the entertain ment device (16) to a router (26) which transmits the video/audio data wirelessly to the playback devices (18).
    [9] 9. The method of one of the preceding claims, characterized in that after step a), the reception of the audio signal (30) by the playback device (18) also prompts the same to display a visual indication that an announcement is in progress. 9
    [10] 10. The method of one of the preceding claims, characterized in that the play back device (18) is provided with speech recognition that converts the an nouncement signal (32) into a text displayed on the playback device (18).
    [11] 11. The method of one of the preceding claims, characterized in that the play back device (18) outputs a detected announcement signal (32) as an acoustic signal.
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    同族专利:
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    MX342217B|2016-09-21|
    WO2013120673A1|2013-08-22|
    DE102012202232A1|2013-08-14|
    CL2014002150A1|2015-01-02|
    AU2013220613B2|2015-09-17|
    CA2864574C|2020-05-12|
    JP2015512195A|2015-04-23|
    CN104115430A|2014-10-22|
    JP6154828B2|2017-07-05|
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    法律状态:
    2016-01-21| FGA| Letters patent sealed or granted (standard patent)|
    2021-08-19| MK14| Patent ceased section 143(a) (annual fees not paid) or expired|
    优先权:
    申请号 | 申请日 | 专利标题
    DE102012202232.5||2012-02-14||
    DE102012202232A|DE102012202232A1|2012-02-14|2012-02-14|Method for making announcements in a means of transport|
    PCT/EP2013/051241|WO2013120673A1|2012-02-14|2013-01-23|Method for performing announcements in a means of transport|
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