SU659904A1 - Apparatus for registering signals represented in digital form - Google Patents

Description

one

The invention relates to the field of instrumentation and can be used to display information in high-speed digital measuring systems.

Signal recording devices are known that contain information conversion units and a registering authority 1, 2. These devices do not provide for the registration of signals represented in digital form.

A device for recording signals presented in digital form is known, containing input information recording nodes, a recording nodes switch, a recording amplifier, the output of which is connected to the input of a recording body, and a clock pulse generator 3.

A disadvantage of this device is that the information array to be registered is received slowly, i.e., the sensor is busy for transmitting the information array to the recording device.

The purpose of the invention is to reduce the reception time by the recording device of the input information array.

The goal is achieved by the fact that the input information recording nodes are made in the form of counters, the information inputs of which are connected in parallel, and a random access memory is additionally entered into the device, the information inputs and outputs of which are connected to the input counters

between the outputs of the overflow circuits of the input counters and the input of the recording amplifier, a clock counter with a decoder, connected to the output of a clock generator, a row counter connected to

to the clock decoder output and through the row decoder to the input of the recording nodes switch, the outputs of which are connected to the control inputs of the input counters, address pulse generator, inputs

which is connected to a clock pulse generator and a device input, a memory address counter, connected to a pulse generator and address inputs of a random access memory, a driver for accessing a memory device whose input is connected to the output of an addressable pulse generator, and an output from a control input to a memory the device, the generator of counting pulses, the inputs of which are connected to the outputs of the generator of clock pulses and the imaging unit; oystvu, --- and the output from the counting inputs of the counters input and request input driver ua

information array, one input of which is connected to the output of the row decoder, and the other from the input of the recording nodes switch and the entire device.

FIG. 1 shows a functional diagram of the device; in fig. 2 shows an example of a picture of a registration frame with different compaction records (t is the Density factor).

The device (Fig. 1) contains, at its input, a group of m multi-functional counters 1 for each of the bits. The information inputs of the device are connected in parallel with the information inputs of the counters 1. The outputs of the multifunction counters 1 are connected to the information inputs of the random access memory (RAM) 2, the capacity of which is M words of tXp. The outputs of the charger 2 are connected to the inputs of multifunction counters 1. The selection of the cell of charger 2 is detected by the counter 3 of the charger address, the number of bits of which is equal to logzM + l. The device also contains a 4-bit bit counter, where. The outputs of the counter 4 are connected to the inputs of the decoder 5 of the clock counter. The outputs of the decoder 5 are connected to the counting input of the counter 6 lines. Counter 6 is p-bit, where p og2N, and N is the number of lines in the frame. The outputs of the counter 6 are connected to the inputs of the decoder 7 of the row counter, and the outputs of the decoder 7 - with the inputs of the request generator 8 and the switch 9 of the recording nodes. The overflow circuits of counters 1 are connected to the inputs of the OR 10 circuit, and the output of the OR circuit to the input of the recording amplifier 11. The output of the amplifier 1I is connected to the input of the registering body 12. The device contains a generator. 13 clock pulses, the output of which is connected to the inputs of the generator 14 of the counting pulses and the generator 15 address pulses. The output of the generator 15 is connected to the input of the driver 16 for accessing the memory, the output of which is connected to the second input of the generator 14 and to the counting input of the counter 3 of the memory address. The output of the generator 13 is connected to the counting input of the counter 4. The counting inputs of the multifunction meters 1 are connected to the output of the generator 14, and the control inputs of the counters 1, which allow reception of information by the counters, are connected to the outputs of the switch 9 write nodes.

The inputs of the device, to which the information about the record compaction coefficient T and the synchronization signals from the sensor come, are connected to the inputs of the driver 8 and the generator 15, respectively. The output of the device is connected to the output of the driver 8 requests. The outputs of the imaging unit 16 are connected to the control inputs of the charger 2. The third input of the generator 15 is connected to the output of the last digit of the counter 3.

The device works as follows.

When the detecting element of the registering authority 12 is located at the border of the registration zones, the request generator 8 generates a signal "Request for issuing digital information from the sensor. The position of the squeaking element on the registration line is characterized by the state of a 4 clock counter, to the counting input of which pulses are received from the generator of 13 clock pulses. The position of the food element in the registration area is characterized by the state of the counter 6

rows, an increase in the value of which by 1 is made when the writing element of the registering authority 12 goes to the next line, i.e., according to the state of the 4 clock counter.

The frame is divided into zones depending on the compaction mode of the recording, based on the requirements for the registration pattern. For example, for a registration frame in N lines with a record compression ratio of 1, the zone includes N lines, with a compression ratio of 2, N / 2 lines, with a compression ratio of 4, N / 4 lines (FIG. 2). In response to a request, the sensor issues

an array of information word words, " a word word from the input of the device enters the inputs of all multi-function counters 1 and is written to the selected counter in the return code.

The switch 9 of the recording nodes selects a counter, depending on which zone the feeding element of the registering authority 12. For example, when the coefficient is 4, when the food element of the recording body is in the first zone (the counter state is 7 lines), the incoming information is recorded in the first multifunctional counter 1, when a food is found, an element in the second zone (the state of the counter is 10 lines jV / 4 + lN / 2) - in the second counter, when the food element is in the third zone, the information is recorded in the third counter, in hours tvertoy zone - the fourth counter.

According to the sensor synchronization signals, a generator of 15 address pulses is started, which forms the address of the memory cell

sending "1 pa counting input of the counter 3 of the memory address and starts the driver 16 of accessing the memory, which generates the control signals of the memory 2. By the generated address in the counter 3 of the memory address

The contents of multifunction counters 1 are recorded in the selected cell of memory 2. If the lifetime of the code at the output of the sensor exceeds the cycle of accessing the memory more than p times, it is possible to use a sealed package,

information transmitted from the sensor (P is the number of words in one output code).

When the last word of the array is received in the multifunctional counter 1 (the end of the reception of the array of information is the presence of "1 in the last discharge of the counter 3 of the address that characterizes the full memory of the memory 2), the process of reading information from the memory 2 and directly registering in the current zone begins. For this, a generator of 15 address pulses is triggered over the output of the decoder 5, generating a cell address and accessing the memory 2.

According to the number of the cell in the counter 3 of the memory 2, the information is entered into the multifunction counters 1. The generator 13 triggers the counting pulses, and the count inputs of the multifunctional counters 1 are fed to the "1, which is added to the word written in the reverse code. At the same address, the contents of multifunction counters 1, reduced by "1, is recorded in memory 2. When the line number and code to be registered coincide, one or several multifunction counters 1 generate overflow pulses, and since the overflow circuits of counters 1 are combined according to the OR, the combined pulse arrives at the input of the recording amplifier 11, is amplified to the required level, and arrives at the registering authority, the feeding element of which ensures the registration of a point at that place of the current lines Which corresponds to this address the memory 2.

In the known device, each subsequent information word can be received in time equal to n cycles after the previous one. Since the bit code-number converter converts the incoming word to the znitarny code ("1 is written only in one of the shift register bits), then the time of the ticks will be required to receive one n-bit information word. In the proposed device, the reception of one bit word is performed per clock cycle.

Thus, the array of information from the sensor is accepted by the proposed device 2 times faster than the known device.

Claims (3)

1. USSR author's certificate number 436230, cl. G 01 D 9/30, 1972. 2. US patent number 3852769, cl. 346-49, publ. 1974. 3. USSR author's certificate No. 478999, cl. G 01 D 5/56, 1973.