SU465617A1 - Hours on multistable elements with digital indication - Google Patents

Description

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This invention relates to the field of electronic timekeeping.

An electronic clock on multistable elements with digital indication is known, the master oscillator, constant generator, frequency divider, counting decades, logic devices, time tagging units made in the form of coincidence circuits and time matching circuits, and the display unit are known. However, in these clocks, time stamps of the minute, clock and day are generated with a significant delay.

The proposed clocks are distinguished by the fact that in them the output of the dividing device is sequentially connected through time-varying match timestamp blocks to the inputs of the next decades of the counting device and to the write entries of the previous decades, and the inputs to the matching time stamp blocks of the minutes, - with the corresponding outputs of the constant generator.

This makes it possible to reduce the dynamic error when issuing current time marks.

The drawing shows a block diagram of the clock. The master oscillator 1 of pulses is connected to the input of a constant generator 2, the output of a constant controls the operation of the coincidence circuit 3, through which every tenth pulse from the second output of the generator 1 is passed to a separating device 4 whose output is connected to the input of the counter 5 direct counting containing phase-pulse counting decades 6. The pulses from the first output of the generator 1 synchronize the entire operation of the device. The output of the dividing device 4 is connected via the allocation unit 7 minutes to the third decade input, to the recording input of the second decade and through the allocation unit 8 hours to the fifth decade input, to the recording input of the fourth decade, and also through the allocation unit 9 days connected with entries of the recording of the fifth and sixth decades. Blocks 7 and 8 are connected to outputs “5 and“ 9, and block 9 - to

Outputs "2 and" 3 constant generators.

The outputs of all counting decades 6 of counter 5, on which current time markers appear, are connected to digital display device 10.

The outputs of counting decades 6 are connected to the inputs of matching circuit 11, the second inputs of which are connected to the outputs of generator 2. The outputs of circuits 11 are connected to the inputs of the first circuit 12, the output of which is connected to the input of the second circuit 12, and the second input of the latter is connected or to the output of device 4 or with the output of the previous second circuit 12, and the output of this circuit is connected with the input of the recording of the second and fourth or fifth and sixth decade 6.

The device works as follows.

The pulses from the generator 1 are fed to the input of the generator 2 and the inputs of the counting decades 6, i.e., the operation of the clock is synchronized with the clock pulses. The pulses from the output of the device 4 with a frequency of 1 Hz are fed to the counting input of the youngest decade of the counter 5 and to one input of the circuit 12 of the allocation unit 7 minutes. At the same time, the first and second counting decades 6 successively pass through a series of states accumulating time information. The counting on the device 10 with the arrival of each pulse increases by one, indicating the value of the current time in seconds. With the arrival of the 59th pulse in block 7, the phases of the output pulses from the first and second counting decades 6 coincide with the pulses corresponding to the phases "9" and "5 of the generator 2. At the same time, the circuits 12 are prepared for operation. The 60th pulse from device 4 passes through circuit 12 to the counting input of the third decade 6, to the recording input of the second counting decade, resetting it to the zero state, and to the input of block 8. The operation of the third and fourth counting decades and diagrams of block 9 is similar. The transfer pulse of block 8 arrives at the counting input of the fifth decade 6. The 23rd and sixth counting decades are counted by 23 pulses. 24th impulse block 8

passes through block 9 and is triggered at zero fifth and sixth counting decades. The time count after 24 hours is repeated automatically.

Thus, blocks 7, 8 and 9 generate time stamps of the minute, hour and day, coinciding in time with the pulses from the dividing device 4.

Subject invention

Hours on multistable elements with digital indication, containing a master oscillator, a constant generator, a dividing device, recalculated decades, logic devices, timestamp blocks (minutes, hours, days) made in the form of coincidence patterns and time match patterns, and a display unit, characterized in that, in order to reduce the dynamic error when issuing current time marks,

the output of the dividing device is sequentially connected via time-varying schemes for allocating time stamp blocks to the inputs of the subsequent decades of the counting device and to the recording inputs of the previous decades,

and the inputs of the time tagging match blocks л lnut, часов hours and суток days are connected to the corresponding outputs of the constant generator.