Controlling viewing distance to a television receiver
First Claim
1. Apparatus for controlling a television receiver in response to proximity of a person, the television receiver comprising a screen, a line of sight signal sensor, a remote control for transmitting commands encoded on a line of sight carrier signal to the signal sensor, and a controller that controls the television receiver in response to receipt of an encoded command by the signal sensor, the apparatus comprising:
- a base unit adjacent to the television receiver, the base unit comprising proximity sensing means for sensing if a person is within a predetermined range forward of the television screen, transmitting means for transmitting a triggering signal, and control means response to the proximity sensing means for actuating the transmitting means to transmit the triggering signal; and
,a slave unit remote from the television receiver, the slave unit comprising receiving means for receiving the triggering signal from the base unit, transmitting means for transmitting a command encoded on the line of sight carrier signal to the sensor of the television receiver, and control means responsive to the received triggering signal for actuating the transmitting means to transmit the command.
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Accused Products
Abstract
A child is encouraged not to sit close to the screen of television receiver. A base unit on the television receiver has a proximity detector that senses whether the child is within a preset range forward of the television receiver. In response to a range violation, the base unit transmits a triggering signal on an RF carrier to a slave unit. In response to the triggering signal, the slave unit transmits an OFF command on an infrared carrier to a standard infrared sensor built into the television receiver. The command is identical to the OFF command transmitted by a remote control associated with the television receiver. Since the base and slave units communicate via an omnidirectional RF carrier, the slave unit can be freely positioned to ensure adequate line of sight transmission communication with the television receiver via the infrared carrier.
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Citations
10 Claims
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1. Apparatus for controlling a television receiver in response to proximity of a person, the television receiver comprising a screen, a line of sight signal sensor, a remote control for transmitting commands encoded on a line of sight carrier signal to the signal sensor, and a controller that controls the television receiver in response to receipt of an encoded command by the signal sensor, the apparatus comprising:
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a base unit adjacent to the television receiver, the base unit comprising proximity sensing means for sensing if a person is within a predetermined range forward of the television screen, transmitting means for transmitting a triggering signal, and control means response to the proximity sensing means for actuating the transmitting means to transmit the triggering signal; and
,a slave unit remote from the television receiver, the slave unit comprising receiving means for receiving the triggering signal from the base unit, transmitting means for transmitting a command encoded on the line of sight carrier signal to the sensor of the television receiver, and control means responsive to the received triggering signal for actuating the transmitting means to transmit the command. - View Dependent Claims (2, 3, 4)
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5. Apparatus for controlling a television receiver in response to proximity of a person, the television receiver comprising a screen, a line of sight signal sensor, and a controller that controls the television receiver in response to predetermined commands received by the signal sensor encoded on a line of sight carrier signal, the commands including an ON command and an OFF command, the apparatus comprising:
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a base unit adjacent to the television receiver, the base unit comprising proximity sensing means for sensing when a person is within a predetermined range forward of the television screen, transmitting means for transmitting triggering signals, and control means responsive to the proximity sensing means and predetermined criteria for actuating the transmitting means to transmit an ON triggering signals corresponding to the ON command and an OFF triggering signal corresponding to the OFF command; and
,a slave unit remote from the television receiver, the slave unit comprising receiving means for receiving the triggering signals from the base unit, transmitting means for transmitting the ON and OFF commands encoded on the line of sight carrier signal to the signal sensor of the television receiver, and control means for actuating the transmitting means in response to a received ON or OFF triggering signal to transmit the corresponding ON or OFF command. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification