JPH0528861Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rotating device for a television receiver that allows the front direction of the television receiver to be changed by operating a remote control transmitter.

[Conventional technology]

As a device of this kind, a remote control transmitter equipped with two keys for rightward rotation and leftward rotation has been proposed, but this requires at least two dedicated control keys.

[Purpose of invention]

An object of the present invention is to allow the front of the television receiver to face the side operating the remote control transmitter, so that only one key is required for controlling the rotation of the remote control transmitter.

[Structure of the idea]

To this end, the present invention has a first light receiving element that receives a remote control signal from the front right direction, and a second light receiving element that receives a remote control signal from the left direction, and both light receiving elements receive the remote control signal. In a rotating device for a television receiver, which rotates the direction of the television receiver clockwise or counterclockwise by a motor depending on reception conditions, a first light-receiving element that passes an output signal of the first light-receiving element;
a gate circuit, a second gate circuit that passes the output signal of the second light receiving element, an RSFF circuit that inputs the output of the first gate circuit to the S terminal and inputs the output of the second gate circuit to the R terminal; a third gate circuit that passes the Q output of the RSFF circuit; a fourth gate circuit that passes the inverted Q output of the RSFF circuit; and the output of the third gate circuit is input to the clockwise rotation input terminal, and the fourth gate circuit and a motor drive circuit that inputs the output of the motor to a left rotation input terminal, the third gate is opened when the first light receiving element is receiving a remote control signal, and the third gate is opened when the second light receiving element is receiving the remote control signal. The fourth gate is opened when the output of the third gate is active, the second gate is closed when the output of the third gate is active, and the first gate is closed when the output of the fourth gate is active.

〔Example〕

Examples of the present invention will be described below. 1st
Figures 3 through 3 are diagrams showing one embodiment thereof. The television receiver A is provided with a rotating part 1 for changing the direction on the support part below it, and a light receiving part 3 for controlling the direction as shown in FIG.
is provided. The light receiving section 3 is made up of a central light shielding plate 4 that is long toward the back, and infrared light receiving elements 5 and 6 arranged on both sides of the back of the light shielding plate 4.
B is a remote control transmitter for direction control, and has one key 20 for emitting an infrared signal.

FIG. 3 is a block diagram of a control section that controls the motor 7 for controlling the direction of the rotating section 1.
When a signal is input to the normal rotation input terminal 8a of the motor drive circuit 8, it rotates in the normal direction and rotates the television receiver A in the right direction, and when a signal is input to the reverse rotation input terminal 8b, it rotates in the reverse direction and rotates the television receiver A. Rotate A to the left. 9 and 10 are and gates, 11 is
RSFF circuit, 12, 13 are AND gates, 14,
15 is an inverter, 16 and 17 are light receiving elements 5 and 6
This is a photoamplifier that amplifies and demodulates the light receiving element from the

Now, if the front of the television receiver A is tilted with respect to the remote control transmitter B as shown in Figure 2, if you press the key 20 of the remote control transmitter B and emit the remote control transmitter from there, the remote control signal will be transmitted. is incident on one light receiving element 6 but not on the other light receiving element 5.

Therefore, one photoamplifier 16 in FIG.
The output from the photoamplifier 17 remains "L", but the output of the other photoamplifier 17 rises and becomes "H".
Input to AND gate 13. At this point, the output of AND gate 9 is "L", so inverter 1
AND gate 1 is activated by the "H" signal inverted at 5.
3 opens the gate, so the output of the AND gate 13 becomes "H". Therefore, the inverted Q output of the RSFF circuit 11 becomes "H", and the inverted Q
The output of the AND gate 10 receiving the output and the output of the photoamplifier 17 also becomes "H", and the signal is input to the reverse rotation input terminal 8b of the motor drive circuit 8. Therefore, the motor 7 is reversely rotated and the television receiver A is rotated to the left in the rotating section 1.

This leftward rotation continues because the output of the AND gate 10 continues to be "H" while the signal from the remote control transmitter B continues. In other words, even if the direction changes and the remote control signal enters the light receiving element 5, the output of the photoamplifier 16 is masked by the AND gate 12 and the RSFF1
1 will not be affected. When the user releases the key 20 of the remote control transmitter B, the television receiver A stops rotating. Therefore, the operator
All you have to do is release your finger from the key 20 of the remote control transmitter B when the television receiver A is facing in front of you. Incidentally, if the remote control signal no longer enters the light receiving element 6, the motor 7 will naturally stop.

In addition, in the above embodiments, the key for controlling the rotation of the remote control transmitter is an operation that must be held down, so it does not necessarily have to be dedicated, and can also be used as a channel key for normal TV control, for example. .

[Effect of idea]

As described above, according to the present invention, it is possible to turn the front of the television receiver in the user's direction by operating the remote control transmitter, and in this case, only one key is required to control the remote control transmitter.

[Brief explanation of the drawing]

FIG. 1 is a front view of a television according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram of remote control operation, and FIG. 3 is a circuit diagram of a motor drive circuit. A...TV receiver, B...remote control transmitter,
1... Rotating part, 2... CRT, 3... Light receiving part, 4
... Light shielding plate, 5, 6 ... Light receiving element, 20 ... Key.

Claims (1)

[Claims for Utility Model Registration] The first part that receives the remote control signal from the right side of the front.
It has a light-receiving element and a second light-receiving element that receives a remote control signal from the left side, and the direction of the television receiver can be rotated clockwise or counterclockwise by a motor depending on the reception status of the remote control signal at both light-receiving elements. In the rotating device for a television receiver, the first light-receiving element passes the output signal of the first light-receiving element.
a gate circuit, a second gate circuit that passes the output signal of the second light receiving element, an RSFF circuit that inputs the output of the first gate circuit to the S terminal and inputs the output of the second gate circuit to the R terminal; a third gate circuit that passes the Q output of the RSFF circuit; a fourth gate circuit that passes the inverted Q output of the RSFF circuit;
and a motor drive circuit that inputs the output of the third gate circuit to the clockwise rotation input terminal, and inputs the output of the fourth gate circuit to the left rotation input terminal, and the first light receiving element receives the remote control signal. when the second light receiving element is receiving a remote control signal, the fourth gate is opened, and when the output of the third gate is active, the second gate is closed; A rotating device for a television receiver, characterized in that the first gate is closed when the outputs of the four gates are active.