JPH056977U - Television receiver - Google Patents

Abstract

(57) [Summary] [Purpose] Extend the battery life by adjusting the remote control signal strength of the remote control transmitter according to the viewing distance. [Structure] A voltage value generated in a light receiving element (photodiode) is converted into a digital value by an A / D converter and input to a microcomputer to read the value. The transmission capability is estimated by comparing the input value with data that has been previously input. The estimated result is displayed on the pipe surface as the reachable distance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a television receiver controlled by a remote control transmitter. To do.

[0002]

[Prior art]

  Currently, most television receivers use remote control transmitters for remote control. It's supposed to be controlled, but its remote control transmitter sends To control the output, operate the adjuster on the remote control transmitter side with the "feel" of the operator. I make it and set it.

[0003]

[Problems to be solved by the device]

  Therefore, in the conventional television receiver, the output control of the remote control transmitter is The control was done simply by the "feel" of the operator, so it could not be controlled successfully.

[0004]

[Means for Solving the Problems]

  The present invention was devised in view of the above-mentioned drawbacks of the prior art. Television receiver controlled by remote control signal of roll transmitter In the above, the means for detecting the intensity of the remote control signal and the means for detecting the strength are detected. Based on the intensity output, the distance The means for deriving the data and the distance data obtained from the deriving means are displayed on the cathode ray tube. The present invention provides a television receiver including a display circuit that operates.

[0005]   More specifically, the present invention is a remote control of a remote control transmitter. In a television receiver controlled by a signal, the above remote control Peak value hold times to detect the signal strength by voltage value and hold the peak value And the voltage value obtained from the peak value hold circuit is converted to a digital value for remote control. A / D converter that uses the strength data of the control signal and the A / D converter The remote control signal strength obtained from the remote control signal. Means for deriving distance data relating to the reachable distance of Television receiver comprising a display circuit for displaying distance data on a CRT. Machine.

[0006]

[Action]

  Therefore, according to the present invention, the remote control can be performed on the light receiving portion of the television receiver. Infrared signal (remote control Signal) is converted into a voltage value according to the input intensity by the light receiving element. This light-electricity conversion The data and micro Comparing by computer processing, selecting suitable initial data and blurring the corresponding reaching distance Display on the tube. It is well known that the transmission intensity and the reaching (operating) distance are in a proportional relationship. That is.

[0007]

【Example】

  An embodiment of the present invention will be described in detail below with reference to the drawings.

[0008]   FIG. 1 shows a remote control generally known for a television receiver according to the present invention. It shows a schematic diagram of the transmitter sending a remote control signal. , 1 is a television receiver, and a remote control transmitter Light receiving unit 3 for receiving a remote control signal (infrared signal) transmitted from 11 Is provided on the front surface of the cabinet 2.

[0009]   The remote control transmitter 11 is well known and is installed on the cabinet 12. A key matrix 13 for keying in remote control signals and a remote Transmitter 14 for transmitting a control signal and a remote controller from the transmitter 14. It has an adjuster 15 for adjusting the strength of the roll signal, and the electric circuit is shown in FIG. It has such a circuit configuration.

[0010]   That is, the power source (battery) 16, the variable resistor that constitutes the adjuster 15, and the transmitter The light-emitting LED that constitutes the section 14 and the driving element 17 that drives the light-emitting LED are directly connected in series. It is connected to the columns and is output from the control circuit 18 according to the key operation of the key matrix 13. By driving the driving element 17 according to the driving signal, Transmit the control signal and adjust the output intensity with the adjuster 15. Made of

[0011]   On the other hand, on the television receiver 1 side, the light receiving unit 3 is configured as shown in FIG. The photodiode to be connected is connected between the power supply + B and ground, and the photodiode and ground The resistance of the remote control signal received between both ends of the resistor 4 interposed between A corresponding voltage is generated.

[0012]   The peak value of this voltage is detected by the peak value hold circuit 5, and the peak value is detected. The peak value is held, then the peak value is digitally converted by the A / D converter 6. Is converted to a value.   This digital value is supplied to the next microcomputer 7 for remote control. It is stored as strength data of the roll signal. The microcomputer 7 has a light The relationship between the intensity and the reach of the remote control signal is stored as map data. The microcomputer 7 is remote from the A / D converter 6 described above. When the intensity data of the trawl signal is input, it is correlated with the data in the map data. The comparison is performed and the data of the corresponding reach value is called.   The distance data indicating the reaching distance is supplied to the next display circuit 8 and is displayed on the display circuit 8. And is displayed on the cathode ray tube 9.

[0013]   The user (operator) looks at the distance data displayed on the CRT 9 and John Judge whether or not the distance is suitable for the viewing position and the viewing position If not, the adjuster 15 may be operated. Depending on the operation of the adjuster 15, That is, the distance data on the cathode ray tube 9 is changed according to the change in the intensity of the remote control signal. Data changes. Therefore, the user can adjust the distance data until the desired value is reached. Operate the container 15.

[0014]   In addition, when performing this operation, the transmitter 14 of the remote control transmitter 11 is touched. This is performed by approaching the light receiving unit 3 of the revision receiver 1.

[0015]   Reference numeral 10 in the figure is a normal signal for amplifying the remote control signal received by the light receiving section 3. Amplifier.

[0016]

[Effect of device]

  The remote control transmitter that comes with normal equipment has a transmission output control device. It has a reach of about 2 to 4 times that of general use. In other words, send more than necessary It consumes power. Therefore, the battery life becomes short. The present invention eliminates this unnecessary Cost can be suppressed, battery life can be extended, and resource consumption can be suppressed.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a state where a general remote control transmitter transmits a remote control signal to a television receiver according to the present invention.

FIG. 2 is a block electric circuit showing an embodiment of the television receiver according to the present invention.

FIG. 3 is a block electric circuit diagram of a general remote control transmitter.

[Explanation of symbols]

1 television receiver 3 Light receiving part 5 Peak value hold circuit 6 A / D converter 7 microcomputer 8 Display circuit 9 CRT 11 Remote control transmitter

Claims (2)

[Scope of utility model registration request] 1. In a television receiver controlled by a remote control signal of a remote control transmitter, means for detecting the intensity of the remote control signal, and arrival of the remote control signal from the intensity detected by the means. A television receiver comprising: a means for deriving distance data regarding a possible distance; and a display circuit for displaying distance data obtained from the deriving means on a cathode ray tube. 2. A television receiver controlled by a remote control signal from a remote control transmitter, comprising: a peak value hold circuit for detecting the intensity of the remote control signal as a voltage value and holding the peak value; A remote control signal can be reached from the A / D converter that converts the voltage value obtained from the value hold circuit into a digital value and uses it as the intensity data of the remote control signal, and the intensity data of the remote control signal obtained from the A / D converter. A television receiver comprising: means for deriving distance data relating to distance; and a display circuit for displaying distance data obtained from the deriving means on a cathode ray tube.