SU1429338A1 - Electronic television program selector - Google Patents

Abstract

The invention relates to television technology and m, b. used in television receivers. The purpose of the invention is to expand the functionality of the device by introducing the automatic sequential switching of television programs. The device contains a control unit J, a memory unit 2 made according to the counter scheme with independent installation and counting inputs, a decoder 3, an indication control unit 4 (switch 3, a setting potentiometer block 6, a display unit 7, a range switching unit 8. For Achievement of the target into the device. Controlled clock rd 9, pulse counter 10 are entered. The device operates in the mode of selecting a fixed program and in the mode Review (i.e., automatic sequential switching mode, in order to view all the programs) In browse mode, turn on When viewing the K program, the device provides the possibility of forcibly ending the 0 review mode and the inclusion of any program M by pressing the corresponding button M of the blog .. ke 1 control. 1 ill. (L 1C.

Description

s

t & oe

00

The invention relates to television technology and can be used; D television receivers. ; The purpose of the invention is the extension of the functionality of the device by introducing the mode of automatic sequential switching of television programs,

The drawing shows an electrical structural block diagram of the proposed device.

The device contains a control block I, a memory block 2, the counting input executed according to the circuit, (first counter) via the second inputs (1, N) is set to the blocking state. The steady state, fixed in memory block 2, through the decoder 3 enters the inputs of the range switching unit 8, at the outputs of which the frequency range command of the selected program is set, noqry- one of the first (control) inputs of the switch 5, the second the inputs of which arrive at fixed, predetermined Nam counter voltages with independent installation adjustments jj from a block of 6 p енци potentiometers on

kym. and the counting inputs, the decoder 3, the display control unit 4, the switch 5, the adjustment potentiometer block b, the indication block 7, the range switching unit 8., a controlled clock generator 9, a pulse counter 1.0,

The device works as follows.

In this case, the output of the switch 5 is the setting voltage for the varicaps of the channel selector corresponding to the selected program, and 2Q also goes to the first inputs of the indication control unit 4, which displays the selected program in the shading unit.

Consider work-devices in re-review work-devices in re-consider the mode of selection is fixed-25 press mode. Let the device be a Noah program, C block 1 control, 1 turn on the Overview mode provides

selection of the program corresponding to the pressed button K () of block 1 of the control 30

representing, for example. a set of N + 1 buttons, where buttons 1, N correspond to H television programs (form the first outputs of the block), and the N-f-l button (forms the second output of the block) includes the Review command, i.e. the mode of automatic sequential switching in order to view all the programs, to the second inputs of the memory block 2, executed in -. A counter, the number of stable states of which is equal to H, which has N independent installation inputs (second inputs of the block) and 40 counts input (the first input of the block,), arrives. a command that sets the memory unit 2 to a fixed steady state, determining the number of the program to be activated, corresponding to the pressed button K (KGBTY); The same command counts 10 pulses, the number of stable conditions of which is N + 1, having set-up inputs of input inputs Set inputs 1, N set the lO pulse counter to a fixed blocking state, blocking the operation of the controlled clock generator 9 — the second counter inputs, the setup input H + 1 sets the counter of 10 pulses to the next steady state following blocking state - third counter input)

laziness. When you press the N + 1 button with the second

In order to output the control unit 1 to the third input of the pulse counter 10, a command is received that outputs the counter from. the blocking state of the controlled clock generator 9, and the generator begins to generate clock pulses that arrive at the counting inputs of the pulse counter 10 and the memory block 2 (made in the form of a counter). In addition, each tact. The second pulse sets the memory unit 2 to the next steady state, i.e., commands are formed at the first and second outputs of the device, providing a choice of the corresponding D5 program. Through N clock pulses, the counter GO of pulses of vozg-; .. rotates to its original stable state. The lock of the controlled clock generator 9. When the Review mode is turned on, the device performs a sequential switching of all programs and automatically ends the switching cycle on the program during which it is turned on Browse mode. The period of the following clock pulses should ensure that sufficient information is received in the projected programs being watched, and should not lead to significant losses.

55

and the counting input (first counter) through the second inputs (1, N) is set to the blocking state. The steady state, fixed in memory block 2, through the decoder 3 enters the inputs of the range switching unit 8, at the outputs of which the frequency range command of the selected program is set, noqry- one of the first (control) inputs of the switch 5, the second the inputs of which receive fixed preset voltage settings, while the output of the switch 5 is the voltage settings of the varicaps of the channel selector corresponding to the selected program, and also goes to the first inputs of the block 4 control indication, which provides the display of the selected program in the shaking unit.

Consider the working device in the mode of review. Let the device, before activating the Overview mode, provide

laziness. When you press the N + 1 button with the second

In order to output the control unit 1 to the third input of the pulse counter 10, a command is received that outputs the counter from. the blocking state of the controlled clock generator 9, and the generator begins to generate clock pulses that arrive at the counting inputs of the pulse counter 10 and the memory block 2 (made in the form of a counter). In addition, each tact. The second pulse sets the memory block 2 to the next steady state, with the commands being formed at the first and second outputs of the device, ensuring the selection of the corresponding program. Through N clock pulses, the counter GO of pulses of vozg-; .. rotates to its original stable state. The lock of the controlled clock generator 9. When the Review mode is turned on, the device performs a sequential switching of all programs and automatically ends the switching cycle on the program during which it is turned on Browse mode. The period of the following clock pulses should ensure that sufficient information is received in the projected programs being watched, and should not lead to significant sweat.

A pp of information in the program, during the scan of which, the Review mode is enabled, and is, for example, 3-4 s. In this case, the pulse counter 10 connected to the second input of the display control unit A provides in the display unit 7 of the display the display

clan mode overview,

- I -

In the Browse mode, turned on while watching a program K, the device provides the possibility of forcibly ending the Browse mode and turning on any program M (Mfl, N) by pressing the corresponding button M on the control unit 1,

F. formula

An electronic television program selection device comprising a control unit, a memory unit, the outputs of which are connected to the inputs of the decoder, the second outputs of which are connected to the inputs of the range switching unit, the outputs of which ARE

the first output of the device, a set of potentiometers of tuning, the outputs of which are connected to the second inputs of the switch, the output of which is the second output of the device, a controlled clock generator, an indication control unit, the outputs of which are connected to the inputs of the display module, so that that, in order to expand the functionality of the device by introducing the mode of automatic sequential switching of television -. of programs, a touch pulse is introduced, the output of which is connected to the second input of the display control unit and C

the control input of the controlled clock generator, the output of the second one is connected to the first counting} inputs of the memory unit and the pulse counter, the first outputs of the control unit are simultaneously connected to the second inputs of the memory unit and the pulse counter, the second output of the control unit is connected to the third input of the pulse counter, the first outputs of the depthfrator are connected simultaneously with the first inputs of the display control unit and with the first inputs of the switch, and the memory block is designed according to the meter circuit with independent installation and

counting inputs.

Claims (1)

Claim The device is a television control unit, a memory unit, the outputs of which are connected to the inputs of the decoder, the second outputs of which are connected to the inputs of the range switching unit, the outputs of which are the first output of the device, the unit according to? tuning tensiometers, the outputs of which are connected to the second inputs * ® comd by counting inputs of the electronic program selection, containing a mutator, the output of which is the second output of the device, controlling; clock generator, indication control unit, the outputs of which are * connected to the inputs of the indication unit '; O.T. characterized in that, in order to expand the functionality of the device by introducing an automatic sequence mode. 'switching of television' programs, a pulse counter is introduced, ¹ output of which is connected to the second input of the display control unit and With a control input of a controlled clock generator, the output of which is connected to the first / counting) inputs of the memory unit and pulse counter, the first outputs of the control unit simultaneously connected to the second inputs of the memory unit and the pulse counter, the second output of the control unit is connected to the third input of the pulse counter, the first outputs of the decoder are connected simultaneously with the first inputs Control and display unit with the first inputs of the switch, wherein the memory unit is configured by the counter circuit independent installation and