A - Human Necessities – 63 – G
Patent
A - Human Necessities
63
G
350/3.5
A63G 33/00 (2006.01) A63F 13/00 (2006.01)
Patent
CA 1114054
TV GAME APPARATUS Abstract of the Disclosure A TV-type game employs a raster screen television for presenting of game symbols. Player operated control switches are encoded to move the symbols. A microprocessor reads the switches. A dually addressed random access memory is employed as the interfacing between the screen and the processor which otherwise function as essentially separate and distinct devices. The memory provides a static storage of the screen pattern for each point in the raster lines with a portion assigned as a processor scratch pad. The memory may be dynamic with periodic refreshing and constructed with individual chips for each of the several bits in a word. The chips are grouped for alternate refreshing and powered during access periods. The processor updates the memory during idle display access periods. The memory is accessed in multiple bits words or bytes for display and processing. For display, a parallel to serial output latch is employed. The previous symbol position and pose is stored in the scratch pad and is erased and rewritten in a new position and pose. The controls may provide encoding. A hardwired bit shifter with programmed shift level rapidly shifts the symbol bits before placing in memory. A high speed memory and low speed processor are shown with separate clocks and a special syn- chronizer unit. -0-
266558
Frederiksen Jeffrey E.
Marks & Clerk
LandOfFree
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