Telephone subscriber's apparatus for signalling decimal digit va

Details Telephone subscriber's apparatus for signalling decimal digit va Telephone subscriber's apparatus for signalling decimal digit va

1976-01-26

1977-08-16

Claffy, Kathleen H.

179 90CS, H04M 145

Patent

active

040427927

ABSTRACT:
Pushbutton telephone subscriber's apparatus in which there is provided a light pen arrangement for reading printed bar-code patterns representing series of decimal digit values, such as telephone numbers, and for converting the signal voltages obtained from reading these patterns to a form which can be signalled by the subscriber's apparatus over an associated telephone line. The bar code patterns may for example be printed in letter headings or in telephone directories adjacent the conventionally printed digit values.

REFERENCES:
patent: 3523161 (1970-08-01), Lewin
patent: 3601552 (1971-08-01), Barnaby et al.
patent: 3714447 (1973-01-01), Jallais
patent: 3727010 (1973-04-01), Fuyama et al.
patent: 3736410 (1973-05-01), Ragland et al.
patent: 3860765 (1975-01-01), McCabe et al.
patent: 3870830 (1975-03-01), Tapiei

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