Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1989-02-21
1990-08-21
Britton, Howard W.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 10, 3581941, 315368, H04N 931
Patent
active
049511319
ABSTRACT:
A viewer remote controlled convergence system for projection television typically having electron beams for the colors red, blue, and green is provided and preferably includes an infrared remote control transmitter and television circuity. The infrared remote has a plurality of keys, a processor, and an infrared transmitter, with the processor causing the transmitter to transmit convergence adjustment signals in accordance with the selection of predetermined keys. The television circuitry includes an infrared receiver for receiving the convergence adjustment signals, a microprocessor for interpreting the received signals and for providing output control signals in response thereto, a plurality of digital to analog converters (DACs) under the control of the microprocesser for generating voltage signals in response to the control signals, and a plurality of yokes coupled to the DACs for receiving the voltages and deflecting the electron beams accordingly. For the horizontal and vertical control of both red and blue electron beams, four DACs and four inductive yokes are provided.
REFERENCES:
patent: 4706115 (1987-11-01), Colineau et al.
patent: 4754204 (1988-06-01), Ando et al.
patent: 4769643 (1988-09-01), Sogame
patent: 4807052 (1989-02-01), Amano
patent: 4858006 (1989-08-01), Suzuki et al.
Britton Howard W.
Lobato Emmanuel J.
North American Philips Corp.
Vu Kim Yen
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