SU788447A1 - Device for selection of information channels - Google Patents

Description

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The invention relates to radio communications, in particular to a technique for processing telemetry information and can be used to input telemetry information into data processing systems 5 and a system for recording telemetry information.

A device for selecting information channels is known, comprising an information receiving unit, the first output of which is connected to the main memory input, the second output of the information receiving unit is connected to the first input of the mask control signal selection unit, the second input of which is connected 5 to the first output unit RAM and valve 1.

However, the known device has limited speed.

The purpose of the invention is to increase speed.

To achieve this goal, a device for selecting information channels, containing an information receiving unit, the first output of which is connected to the input of the RAM, the second output of the information receiving unit is connected to the first input of the mask control signal extraction unit, the second input of which -ZO

not connected with the first output of the RAM block, as well as the valve, sequentially connected block for discharging bits of the masked word word, counter for the number of units of the selected part of the word, and adder; connected, respectively, to the first and second inputs of the block for allocating bits of the mask of the read word, the second output of the RAM block is connected to another input of the adder, the output of which is connected to the first input of the valve, and the output One of the mask control signal isolation unit is connected to the second valve inlet.

The drawing shows a structural electrical circuit of the proposed device for selecting information channels.

Claims (1)

A device for selecting information channels contains an information receiving unit 1, a working memory unit 2, a mask control signal extraction unit 3, a valve 4, a mask field of a read word selection unit 5, a read word counter 6, a unit number of the selected part of the word, an adder 7. Device To select information channels, it works as follows. Before starting the work, the initial data (mask and constants) is entered into the RAM block 2. Each time the mask field corresponds to a certain initial channel number (address). The presence of i in the mask bits means that the corresponding channels are selected. The constant -.number contained in the field of each word of the operating memory block 2 is entered. masks of all words whose addresses are less than the address of the given word. As a result of accessing block 2, the RAM reads from it the contents of the desired word. The masks of the mask are fed to the block 5. At the same block 5, from block 1 of receiving information, there is a small bit of the address code that determines the bit number of the mask's floor. The allocation unit 5 selects the corresponding bits of the mask of the read word that go to counter 6. Counter 6 generates a binary code corresponding to the number H in the highlighted part of the read word. This binary code is fed to adder 7, where it is summed up with the contents of the floor of the constants of the read list. The selection of the sex of the mask of the word read, the count of the number of units of the highlighted word and the sum of the result of the count of the words with the con- text of the word read occur regardless of whether the original channel is selected or not. The field masks of the read-out mask also arrive at the mask control signal selection block 3, to the other input of which the lower bits of the address code from the block arrive. 1 receiving information. In block 3, the corresponding times in the row and half of the mask of the read word are selected. If the selected bit field of the mask contains O, then nothing is output to the device, and the device stops working until the next source channel address information appears on the input buses of the unit 1. E-if the selected bit field of the mask contains, then this is the control signal for the valve 4, as a result of which a new channel number formed by the adder 7 appears on the output buses of the device. The proposed device for selecting information channels has a high speed and relatively simple construction. Formula of the Invention A device for selecting information channels, comprising an information receiving unit, the first output of which is connected to the input of the RAM unit, the second output of the receiving information unit tion connected to the first input of the release of y-channeling yushego mask signal, a second input coupled to a first output of the RAM memory, and the valve of m and l h w .a o f e c. By the fact that, in order to increase speed, sequentially connected block for discharging bits of the mask of the read word, a count of the number of units of the selected part of the word and an adder, the first output of the RAM and the second output of the information receiving block are connected the inputs of the allocation unit bits of the floor mask of the read word, the second output of the RAM unit is connected to another input of the adder, the output of which is connected to the first input of the valve, and the output of the allocation unit at ravl actuating signal mask is connected to the second input gate. Sources of information taken into account during the examination 1. Copyright certificate of the USSR 562952, cl. H 04 Q 9/14, 1975 (Prototype) ..