• 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:
    A circuit arrangement is provided for setting a type carrier, having character types arranged on the periphery thereof, from a present setting position to a new setting position over the shortest path of rotation, via a stepping motor, by means of pulse train elements derived from information characters input in binary form, where the relevant position of the type carrier can be read as a binary coded position character, in business machines, data machines, teleprinters or the like.
    公开号:SU713547A3
    申请号:SU772522353
    申请日:1977-09-16
    公开日:1980-01-30
    发明作者:Виснер Вольфганг
    申请人:Сименс Аг (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to radio engineering and can be used to set a carrier of characters, around the circumference of which font characters selectively used for printing are located from one position along the shortest turning path to a new position using a stepper motor by means of clock steps received from specified binary coded signals.
    A stepper motor control device for mounting a rotating carrier of characters for office computing machines or teletypes is known, which contains a counting diagram of the positions of the carrier of characters 1.
    However, such a device has a low speed.
    The purpose of the invention is to increase speed.
    For this purpose, two analyzers, a comparator unit and an OR element are inserted into the stepper motor control unit for setting the rotating carrier of characters for office computers or teletypes, including a counting circuit of the positions of the carrier of symbols, the input lines and the counting circuit of the positions of the carrier of symbols are connected to the inputs of the first analyzer, and the outputs of the first analyzer are connected to the inputs of the second analyzer and the comparison unit, the output of which is connected to the corresponding input of the second analyzer and the first input of the AND element LI, the second input and output of which are connected respectively with the additional output of the first analyzer and the input of the counting circuit of the positions of the carrier of characters.
    The first analyzer contains a comparison unit, two elet-1ENT OR and an adder) whose inputs are connected to the outputs of the OR elements, whose inputs are connected to the inputs of the comparison unit, you-. the stroke of which is connected to one of the inputs of the first element OR OR, and the second element OR is inverted, and the inputs of the comparison unit and the outputs of the adder are respectively the inputs and outputs of the first analyzer.
    权利要求:
    Claims (4)
    [1]
    In addition, the first analyzer contains a comparison unit and an OR element, one of the inputs of which is connected to the outputs of the comparison unit, the auxiliary output of which is connected directly to the corresponding input of the comparison unit and inverted with other inputs of the OR element, the outputs of which are the outputs of the first analyzer, inputs which are the inputs of the comparison unit, the second analyzer contains the element OR, the element AND, the adder and the drive, the outputs of which are connected to the inputs of the element AND whose outputs are connected to one The inputs of the adder, to the other inputs of which are connected the outputs of the element OR, the inputs of which and the corresponding input of the element And are the inputs of the second analyzer, the outputs of which are the outputs of the adder. Figures 1 and 2 give the structural electrical circuit of the proposed device. The device contains a counting of the positions of the carrier of characters, analyzers 2,3, block 4 of comparison, element OR 5. Analyzer 2, shown in figure 1, includes block b of comparison, elements OR 7.8, adder 9. Analyzer 2, shown in figure .2 contains a block 1, .0 comparison, the element OR 11; the analyzer 3 consists of the element OR 12, the element And 13, the adder 14 and the accumulator 15. The device operates as follows. Analyzer 2 is fed through six parallel input conductors to binary-coded signals b, which characterize the new position that the print head should occupy. The letter-printing head can occupy m positions, while in accordance with the instantaneous position of the literal head is countable, scheme 1 outputs a binary-coded signal of the head position. Computational scheme 1, depending on the direction of rotation of the letter-printing head, can read both forward and backward, and just like a ring counter with a counting length from O to t-1, i.e., m is significant. The signals of the new position b supplied through the input conductors and the signals of the instantaneous position of the beech of the print head from the output of the counting circuit 1 are fed to a comparison block b, the output of which in the case that the binary value of the signal of the new position of head b is larger than the value of the position signal The first evaluation signal, which is directly supplied to the element And 7, to which the position signal a is also supplied, and to the element OR 5 and inverted to the element And 8, to which the signal of the new position b is fed. If the magnitude of the position signal is less than the magnitude of the position signal b, the position signal is inverted, and the signal of the new position b is directly fed to the inputs of the first adder 9, if the magnitude of the position signal a is not less than the value of the signal of the new position b, then the position signal OR 7 without change, and the signal of the new position b is through the element OR 8 inverted is fed to the inputs of the adder 9, the output of which is the absolute value of the difference between the magnitude of the signal of the new position b and the position signal a the torus in the block is compared with a number equal to half the possible positions of the m-direct printing head. If the magnitude of the difference formed by the adder 9 is more than half of the possible positions m of the head, then block 4 generates a second evaluation signal that is applied to the elements OR 5, 12, And the value of the difference of the adder 9 and And 13, also goes to the element OR 12 to which a constant value is also applied, per unit greater than the number of possible positions m of the print head. If such an evaluation signal is entered by block 4, the difference value generated in adder 9 is inverted, and the constant value supplied to AND 13 is directly fed to adder 14, the output of which is the amount of rotation by which the stepping motor must turn the print head. This amount of rotation is converted to a stepping motor control step. If the difference value determined by the adder 9 is not more than half of the possible positions m, then the value of this difference is transmitted directly to the outputs of the adder 14, the evaluation signal generated by block 6, and the evaluation signal from block 4 is fed to the element OR 5, so that Only one of these signals generates a control signal to both the counting circuit 1 and the stepping motor control circuit for rotation in the opposite direction. If blocks b and 4 do not issue evaluation signals or simultaneously issue evaluation signals, the control signal is transmitted through the -OR 5 element to rotate in the opposite direction, i.e., the motor control circuit and the counter circuit operate in the forward rotation direction. The input signal of the new position b and the inverted position signal are fed to the adder 14, where the value of the difference between the signal of the new position b and the position signal a is formed. The transfer that occurs at the output of the last stage is fed to the input of cyr-tMatopa 14 and, as the first signal, is transmitted to the element OR 5. The performance of the proposed device is improved. Claim 1. A stepper motor control device for mounting a rotational carrier of characters for office computers or teletypes containing a counting scheme of the positions of the carrier of characters, characterized in that, in order to improve speed, two analyzers of a torus, a comparison unit and an element OR, the input lines and outputs of the counting circuit of the positions of the carrier of characters are connected to the inputs of the first analyzer, and the outputs of the first analyzer of the torus are connected to the inputs of the second analyzer and the comparison unit whose output connected to the corresponding input of the second analyzer and the first input of the OR element, the second input and output of which are connected respectively to the additional output of the first analyzer and the input of the counting circuit of the positions of the character carrier.
    [2]
    2. Device pop, 1, differs from the fact that the first analyzer contains a comparison unit, two elements OR and a sum.tor, whose inputs are connected to the outputs of the OR elements, whose inputs are connected to the inputs of the comparison unit, the output of which. connected to one of the inputs of the first OR element, and the second OR element is inverted, and the inputs of the comparison unit and the outputs of the adder are respectively the inputs and outputs of the first analyzer.
    [3]
    3. The device according to claim 1, characterized in that the first analyzer contains a comparison unit and an OR element, one of the inputs of which is connected to the outputs of the comparison unit, the additional output of which is connected directly to the corresponding input of the comparison unit and, inverted with others the inputs of the OR element, the outputs of which are the outputs of the first analyzer, whose inputs are the inputs of the comparison unit.
    [4]
    4. Device pop. 1, characterized by the fact that the second analyzer contains an OR element, an AND element, an adder and a drive, whose outputs are connected to the inputs of an AND element, whose outputs are connected to one inputs of an adder, to the other inputs of which are connected the OR element whose inputs and the corresponding input of the AND element are the inputs of the second analyzer, the outputs of which are the outputs of the adder. Sources of information taken into account in the examination 1. Patent of Germany No. 2154899, cl. H 04 L 17/24, 1975 (prototype).
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    同族专利:
    公开号 | 公开日
    SE7710340L|1978-03-17|
    FR2364767B1|1980-11-28|
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    US4131840A|1978-12-26|
    BR7706177A|1978-07-04|
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    GB1587262A|1981-04-01|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3399753A|1966-01-10|1968-09-03|Theresa Beckman|Printer with type wheel rotatable in either direction|
    US3569815A|1968-07-24|1971-03-09|Gen Electric|Servo driven turret direction determination control for numerical control system|
    US3573589A|1969-04-01|1971-04-06|Burroughs Corp|Position servo system for a motor including detenting at destination|
    US3789971A|1971-06-21|1974-02-05|Honeywell Inf Systems|Servo control system for a serial printer print head|
    BE791255A|1971-11-11|1973-05-10|Siemens Ag|WRITING MACHINE CONTROLLED BY CODE, WITH A CHARACTER CYLINDER ADJUSTABLE BY STEP MOTOR|
    US3795851A|1972-01-03|1974-03-05|T Gage|Digital servosystem|
    US3826964A|1973-06-28|1974-07-30|Nasa|Digital servo controller|JPS6211370B2|1978-11-14|1987-03-12|Ricoh Kk|
    FR2441879B1|1978-11-17|1981-04-17|Automatisme Cie Gle|
    FR2465595B1|1979-09-24|1987-04-30|Mccorquodale Mach Syst|PRINTING APPARATUS|
    DD150028A1|1980-04-10|1981-08-12|Max Janicki|DEVICE FOR CONTROLLING AND MONITORING VALIDATORS ON PRINTING MACHINES|
    US4401931A|1980-12-08|1983-08-30|International Business Machines Corporation|Apparatus actuated by a pair of stepper motors with shared drive|
    GB2134851B|1983-01-24|1986-03-05|Sanyo Electric Co|Daisy-wheel printer|
    US4541334A|1984-10-24|1985-09-17|Micr Short Systems, Ltd.|MICR Printer|
    JP3015620B2|1993-04-28|2000-03-06|三洋電機株式会社|Disc player control device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19762641760|DE2641760B1|1976-09-16|1976-09-16|CIRCUIT ARRANGEMENT FOR ADJUSTING A TYPE CARRIER IN THE SHORTEST ROTATIONAL WAY|
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