SU1068983A1 - Device for recording digital information - Google Patents

Abstract

A DEVICE FOR RECORDING DIGITAL INFORMATION, containing an input unit connected in series, a storage device, an interface unit and a magnetic recording apparatus, a control unit, an output connected to the second memory input, and a synchronization unit, the first output connected to another input of the interface unit, characterized in that, in order to improve the accuracy of time synchronization, a sequentially connected time stamp generator and a counter, the output of which is connected to the third input of the input, are entered into it minal device and a reset input - to the second output of the sync block. I and CX): & 00 with

Description

The invention relates to instrumentation, in particular, to devices for recording information on magnetic media using buffer memories, and can be used in magnetic recording equipment for digital information arriving asynchronously with the recording.

A device is known comprising a receiving register connected in a certain way, two blocks of buffer memory with address counters, a code converter, a control circuit, a switch and a magnetic recording apparatus. The inclusion of two blocks of buffer memory reduces the loss of asynchronously received information 11.

The disadvantage of the recording device is the impossibility of accurately relating information to time, since the input information is delayed in the buffer memory, and the delay time is random.

Closest to the invention: the technical essence is a complex of onboard aggregated means for collecting, converting, and recording information in a composition for recording code information. To register information codes, this complex includes an input unit, a storage device, an interface unit and a magnetic recording apparatus connected in series, as well as a control unit connected to the memory device and a synchronization unit connected to the interface unit C21.

A disadvantage of the known device is the low volume of the time synchronization information, due to the fact that the information is tied to time in the interface unit, i.e. after the storage device, and therefore the delay in the input information in the storage device, which can reach one second, is not taken into account.

The purpose of the invention is to improve the accuracy of time synchronization.

This goal is achieved by the fact that in a device for recording digital and formation, containing an input unit connected in series, a memory, a interface unit and a magnetic recording apparatus, a control unit, an output connected to the second memory input, and a synchronization unit, the first output connected to another input of the interface unit, serially connected time stamp generator and a counter, the output of which is connected to the third memory input, and the reset input to the second output of the ka sync.

The drawing shows a block diagram of the proposed device for recording information.

The device contains serially connected input unit 1, storage device .2, interface unit 3, magnetic recording device 4, as well as control unit 5, synchronization unit b associated with storage device 2 and unit 3, time stamp generator 7 and counter eight.

The device works as follows.

The input information in the form of a serial code is fed to the input unit 1, which interfaces the device for recording information with the transmission line and converts the serial code into a parallel one. Information

in the form of a parallel code from the output of block 1, it enters the record in the memory 2. The information read from the memory 2 passes through the interface 3 to the magnetic recording apparatus 4 to record it on the magnetic tape. Control unit 5 records the input information words into the corresponding cells of the memory

devices. 2 and reading the recorded information with a predetermined frequency. The synchronization block 6 generates a time code with a low-order price equal to 1 s, which enters

the conjugation unit 3, where the code consisting of the information received from the synchronization unit 6 is formed. Thus, information is temporarily synchronized to an accuracy of 1 s. For a more accurate time reference, a time stamp generator 7 and a counter 8 serve. The generator 7 generates pulses with a following frequency, for example,

100 Hz, which are fed to the counting input of the counter 8. The second impulses from the synchronization unit 6 are fed to the input of the zero-frequency, electric time 8 input. Thus, at the output of the counter 8, a code is generated

time, for example, hundredths of a second. This time code is written to the memory 2, and it is simultaneously recorded with the words input

information, for which each cell of its device 2 memory has additional bits for time information. The read information from the storage device 2 contains, besides input3 10689634

Noah, information about the time the incoming information is recorded in the sar

laziness within 1 s with an accurate memory device simultaneously

up to 0.01 sec. of temporary iifO {n 4ation of hundredths

This device allows for seconds, which eliminates the influence of sen

improve synchronization accuracy with information support in eapomgiots

to 0.01 s due to the fact that the input-5 device for accuracy sichroni a1sh.

Claims (1)

A DEVICE FOR RECORDING DIGITAL INFORMATION, which contains an input unit, a storage device, a pairing unit and a magnetic recording apparatus, a control unit output connected to a second input of the storage device, and a synchronization unit connected to a different input of the interface unit by a first output, characterized in that ,, in order to improve the accuracy of time synchronization, series-connected time stamp generator and a counter are introduced into it, the output of which is connected to the third input of the memory about the device, and the reset input - to the second output of the sync block.