Power supply control apparatus for a television receiver
First Claim
1. Power supply control apparatus for a television receiver having a power supply with ON and OFF states, comprising:
- manually-actuable power switch means for switching the power supply of the television receiver between said ON and OFF states;
timing means for generating a time code representing the current time;
key input means for generating a start-time code representing a programmable start time and for generating an end-time code representing a programmable end time;
memory means for storing said start-time code and end-time code;
first coincidence detector means for detecting coincidence between the generated time code and said start-time code stored in said memory means and providing a first coincidence output when such coincidence is detected;
second coincidence detector means for detecting coincidence between said generated time code and said end-time code stored in said memory means and providing a second coincidence output when such a coincidence is detected; and
conditioning means for conditioning said power switch means into an enabled condition in which said power switch means is manually actuable for said switching of said power supply and into a disabled condition in which said power switch means is prevented from said switching of said power supply, including means responsive to said first coincidence output for conditioning said power switch means into one of said enabled and disabled conditions and responsive to said second coincidence output for conditioning said power switch means into the other of said enabled and disabled conditions.
0 Assignments
0 Petitions
Accused Products
Abstract
A power supply control apparatus for a television receiver has a manually-actuable power switch for switching the power supply of the television receiver between its ON and OFF states, a digital timer for generating a time code representing the current time, a key input for generating a start-time code and an end-time code respectively representing programmable start and end times, a memory for storing the start-time and end-time codes, first and second coincidence detectors for generating first and second coincidence outputs whenever there is coincidence between the generated time code and the stored start-time and end-time codes, respectively, and a conditioning circuit for conditioning the power switch in response to the first and second coincidence outputs, so that the power switch is enabled and disabled, respectively, following the occurrence of the start and end times when the outputs of the timing circuit and the first memory coincide, a second coincidence detector for detecting the coincidence of the outputs of the timing circuit and the second memory and generating a second coincidence output when the outputs of the timing circuit and the second memory coincide, a first circuit responsive to the first coincidence output and for disabling or enabling the operation of the manual power switch, and a second circuit responsive to the second coincidence output and for enabling or disabling the operation of the manual power switch.
9 Citations
6 Claims
-
1. Power supply control apparatus for a television receiver having a power supply with ON and OFF states, comprising:
-
manually-actuable power switch means for switching the power supply of the television receiver between said ON and OFF states; timing means for generating a time code representing the current time; key input means for generating a start-time code representing a programmable start time and for generating an end-time code representing a programmable end time; memory means for storing said start-time code and end-time code; first coincidence detector means for detecting coincidence between the generated time code and said start-time code stored in said memory means and providing a first coincidence output when such coincidence is detected; second coincidence detector means for detecting coincidence between said generated time code and said end-time code stored in said memory means and providing a second coincidence output when such a coincidence is detected; and conditioning means for conditioning said power switch means into an enabled condition in which said power switch means is manually actuable for said switching of said power supply and into a disabled condition in which said power switch means is prevented from said switching of said power supply, including means responsive to said first coincidence output for conditioning said power switch means into one of said enabled and disabled conditions and responsive to said second coincidence output for conditioning said power switch means into the other of said enabled and disabled conditions. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification