Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1975-04-22
1977-01-25
Curtis, Marshall M.
Communications: electrical
Audible indication
Percussion-type sound producer
178 18, 58152R, 3401463SY, 340324R, G08C 100
Patent
active
040054004
ABSTRACT:
A conductive stylus is utilized in conjunction with conductive segments to rovide for data entry into extremely small calculators such as might be incorporated in an electronic digital watch case. Multi-bit codes, representing the segments contacted by the stylus, are generated and stored as the stylus moves over the segments. These codes are stored until a complete character has been scribed. The stored multi-bit codes are then analyzed in accordance with the segments contacted and the sequence in which they were contacted to determine what character was scribed.
REFERENCES:
patent: 2964734 (1960-12-01), West
patent: 3108254 (1963-10-01), Dimond
patent: 3142039 (1964-07-01), Irland et al.
patent: 3559170 (1971-01-01), Barnes
patent: 3585589 (1971-06-01), Reilly
patent: 3803834 (1974-04-01), Reese
Curtis Marshall M.
Societe Suisse pour l'Industrie Horologere Management Services S
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