Sequential encoding and decoding apparatus for providing identif

Dynamic information storage or retrieval – Information location or remote operator actuated control – Dictation or transcribing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

179 609, 340171A, 340171PF, G11B 1902

Patent

active

042543070

ABSTRACT:
An encoder for manually or automatically providing a sequence of identifier signals and a decoder for same, in a remote dictation system. A pair of control lines (10, 10' and 11, 11') carry the identifier signals which are in part identical to signals used to control dictation recording functions of the remote recorder. A sequential counter (31) and a matrix of switches (32) provide an automatic sequence of signals to a set of transistors (15-18) and diodes (19, 20, 22) which establish the control line voltages. These devices are alternately connected (70-75) to shift registers (61, 62) which accept keyboard signals entered from a keyboard (60). Timing circuitry (65, 66, 68, 69, 99, 117) controls the shifting of keyboard signals in and out of the registers. A combination of comparators (150-153) and gates (170, 171) decode the control line voltages and provide inputs to decoding (169, 172, 176) and timing (191, 195) circuitry which provides a binary number to a memory device (250). The occurrence of special, non-numerical, signals is detected by special gates (227, 237). Also shown is verification apparatus comprising a pair of digital comparators (310, 325) which will prevent operation of a recorder unless the identifier signal corresponds to a predetermined valid signal stored in a memory (311).

REFERENCES:
patent: 2783304 (1957-02-01), Crabtree
patent: 3286033 (1966-11-01), Lemelson
patent: 3301958 (1967-01-01), Blakeslee et al.
patent: 3648249 (1972-03-01), Goldsberry
patent: 3725589 (1973-04-01), Golden
patent: 4004276 (1977-01-01), Robinson et al.
patent: 4065755 (1977-12-01), Oliveira

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Sequential encoding and decoding apparatus for providing identif does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sequential encoding and decoding apparatus for providing identif, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sequential encoding and decoding apparatus for providing identif will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-81495

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.