Pocket-size electronic device for playing chess

Details Pocket-size electronic device for playing chess Pocket-size electronic device for playing chess

1977-05-09

1978-02-14

Morrison, Malcolm A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340323R, 364410, 273237, A63F 300, G09B 100

Patent

active

040730670

ABSTRACT:
A pocket-size portable electronic device for playing chess problems comprises an electronic visual display, a display driver, an 8-digit keyboard and scanner, function keys and scanner, a random access memory, registers and counters, and a logic control unit which includes a switchable data bus controlled by a read only memory, a ROM pointer and a clock. The logic control unit decodes entered coded groups of data according to a special decoding algorithm, the decoded groups represent white and black moves for solving a chess problem. The groups are stored in a random access memory in use. The device responds to specific white moves input. If the input white move is the same as the stored corresponding white move, the device will display the next black move. The user then decides upon his next white move, the play is continued until the problem is solved by the entry of correct white moves.

REFERENCES:
patent: 3395463 (1968-08-01), Worden et al.
patent: 3863928 (1975-02-01), Nelson
patent: 3888491 (1975-06-01), Bernard et al.
patent: 4019745 (1977-04-01), Mustelier
"Chess Mate" -- Electronics; Mar. 4, 1976; p. 44.
"Chess and Chance Games Win at Electronics Show;" Electronic Design; Newscope -- p. 21 -- Feb. 15, 1977.

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