RU2168U1 - DEVICE FOR RECEIVING INFORMATION DURING DURATION OF VERTICAL EXTINGUISHING SIGNAL - Google Patents

Abstract

A device for receiving information during the duration of the vertical blanking signal, containing a data selector, RAM, which is connected to the input / output interface, a line counter and a byte counter, the outputs of which are connected to the RAM address inputs, and the inputs are connected to the control unit and the input / output, characterized in that it further comprises a television tuner and an address information unit, wherein the first input of the television tuner is connected to the television antenna, the second and third control inputs are connected s with an input / output interface unit, and the output is connected to the information input of the data selector and the input of the control unit, the output of the address information block is connected to the information input of RAM, and the input of the address information block is connected to the output of the control unit.

Description

the vertical blanking signal, application dated 2.01.92, selected by the authors as n FIG. 1). Figure 1 is a block diagram.

A property including a data selector that selects input video signal data, a random access memory (RAM) for storing received information, which is connected to an I / O interface unit, which is connected to a PC as an input / output port, line counter, whose input is connected with an input / output interface unit and a byte counter, outputs of which type 5066548/09 of this data type are connected to the address inputs of RAM, the information outputs of which are connected to the input / output interface unit, the information input of which is connected with the output of the data selector, the control outputs and inputs of which are connected to the control unit, the third output of which is connected to the line counter, the fourth to the byte counter, the second to the RAM control input, and the first output connected to the input / output interface unit.

The disadvantage of this technical solution is the need for an additional device as a source of a full television video signal, and the difficulty with its control, as well. also, the inability to use transmission protocols with address identification of receiving devices.

The purpose of creating a utility model is to expand the functionality and ensure the use of protocols with address identification of receiving devices.

This goal is achieved by the construction of information for the duration of the vertical blanking signal, containing a data selector, RAM, which is connected to the input / output interface, a line counter and a byte counter, the outputs of which are connected to the address inputs of the RAM, and the inputs are connected to the control unit and block input / output interface, further comprises a television tuner and a block of address information.

A search by the applicant for scientific, technical and patent sources of information showed that this technical solution, compared with the prototype identified as a result of the search, has new significant features, therefore, the proposed utility model meets the criterion of novelty.

The criterion of a utility model industrial applicability is confirmed by the fact that the proposed utility model can be successfully and without additional material costs used to receive information during the duration of the vertical blanking signal.

The figure 2 presents a block diagram of the proposed device. The device contains:

TV tuner 1, input / output interface unit 2, control unit 3, data selector 4, address information block 5, RAM b, line counter 7 and byte counter 8.

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antenna (not shown in the diagram;, its other two inputs are connected to the input / output interface 2, the output of the television tuner 1 is connected to the input of the control unit 3 and the input of the data selector 4, the second input of the data selector 4 is connected to the output of the control unit 3, and the output of the data selector 4 is connected to the information input of RAM b, the second input of the control unit 3 is connected to the output of the input / output interface 2, the first output of the control unit 3 is connected to the RAM 6, the second output of the control unit 3 is connected to the input of the address information unit 5, the third and quarters the outputs of the control unit 3 are connected to the inputs of the byte counter 8 and the line counter 7, respectively, the output of the byte counter 8 is connected to the address input of the RAM b, the output of the line counter is connected to the address inputs of the RAM 5 and the second input of the line counter is connected to the output of the I / O interface 2, the output of the address information block 5 is connected to the information input of the RAM b, the output of the RAM 6 is connected to the input / output interface 2, the input / output interface 2 has a bi-directional input / output to the common PC bus.

Principle of operation

A device for receiving information during the duration of the vertical blanking signal operates as follows.

Under the control of a PC, the television tuner 1 is tuned to receive a television channel. During the duration of the vertical blanking signal, the information received as part of the full television signal passes through the data selector 4 and is recorded in successive cells of RAM 5. Each horizontal blanking signal in the interval of the vertical blanking signal causes recording in the next group of G.ZU 6 cells. During periods time between the vertical blanking signals, information, starting with any (determined by the MEM) group of RAM cells 6, is sequentially read by the MIM through the input / output interface unit. Through the I / O interface 2, the PC has access to the address information block 5 of the device.

The broadcast signal is fed to the input of the television tuner 1, where it is demodulated and the full television signal is extracted, which is fed to the input of the data selector 4, in which information is extracted from the signal and converted from serial to parallel. 3

discharges. From the output of the data selector 4, the converted data is fed to the information input of RAM b. A code determined by the state of the line counter 7 and byte counter 8 is received at the address input of RAM on the address bus. The state of the byte counter o changes when the next information packet of 8 bits is ready, under the influence of the signal from the fifth output of control unit 3, the status of line counter 7 is sequentially changes under the influence of the signal from the fourth output of the control unit 3. The change in the status of line counter 7 occurs at the beginning of each horizontal blanking signal. The number of row counter states is 2, the byte counter is 2. With steady-state values on the data bus and address bus, the RAM 6 is written to the cell under the influence of the signal from the third output of the control unit 3. At the end of the vertical blanking signal, the control unit 3 generates a signal that changes the RAM mode b from writing to reading mode. The control unit 3 generates a signal at the first output, causing in the input / output interface 2 a change in the path of information on the data bus. The input / output interface 2 at the first output generates a signal for the PC about the readiness of the data. The first input of the input / output interface 2 receives a synchronizing sequence of pulses. I / O to I / O interface 2 is a bi-directional bus. The fourth input controls by passing information on the data bus. 3, depending on the state of the signal at this input, the information gets either from U3BM to the second input of the line counter 7, or from the first output of RAM о to a PC. With one state of the signal at the fourth input of I / O interface 2, a pulse at its second input causes the data from the PC to be entered in line counter 7. With another state of this signal, a signal is generated at the second input of control circuit 3 at the second input of I / O interface 2 , which in turn generates signals that change the state of the line counter 7 and the byte counter 8, and also generates a signal at the third output, which provides the reading of information from RAM about in the MEM. Information is extracted from the full television signal in the data selector 4 by means of synchronizing pulses supplied to the second input from the fifth output of the control unit 3. Control functions, maintain the transmission protocol, over-4T ssw / s // P

Tuning trvliviynnogp tuner for frequency diaposin smolders PC. 3 ROM b records the information contained in the BO of all free intervals of the horizontal blanking signal and located sequentially in the RAM cells about. Ztich independence is achieved from the location of information in the range of the vertical blanking signal.

All information recorded in RAM 6, then transfers .. I to the computer. 3 PC TACCHR receives address information of the device for reception. This ensures independence from information transfer protocols.

The use of this device with newly introduced elements, a television tuner, an address information block allows you to expand the functionality of the claimed utility model as it can work in various systems for transmitting additional information in the vertical blanking interval, receive information of any kind regardless of the transmission protocol and introduce paid distribution of information, which increases the profitability of the use of this device.

Authors: Ievlev Alexander Borisovich, Kulakov Vladimir Viktorovich Sugak Sergey Gennadievich

Claims (1)

A device for receiving information during the duration of the vertical blanking signal, containing a data selector, RAM, which is connected to the input / output interface, a line counter and a byte counter, the outputs of which are connected to the RAM address inputs, and the inputs are connected to the control unit and the input / output, characterized in that it further comprises a television tuner and an address information unit, wherein the first input of the television tuner is connected to the television antenna, the second and third control inputs are connected s with an input / output interface unit, and the output is connected to the information input of the data selector and the input of the control unit, the output of the address information block is connected to the information input of RAM, and the input of the address information block is connected to the output of the control unit.