US3706853A
Expired / Lapsed
US
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Time division communication apparatus
Assignee: NEC Corp
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Filing: 1971-02-24
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Granted: 1972-12-19
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Expires: 1991-02-24
Abstract
Abstract A time division communications system employs central control apparatus for effecting bilateral signaling for a plurality of cascaded system stations. Each station includes receiving and transmitting apparatus for receiving and inserting pulses occurring in a particular time interval of a composite pulse train sequence. The central control unit changes the relative position of the incoming and outgoing pulse digits to effect a desired communications interconnection pattern between the system stations.
Inventors
- 👤 Noriaki Salto
- 👤 Shinsuke Kadota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:21
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H04J; H04J3/00; H04J3/02; H04J3/08; H04L; H04L12/00; H04L12/28; H04L12/42; H04L12/427; H04L12/43
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
122 words
Time division communication station apparatus for responding to a signal wave comprising a frame synchronizing pulse and at least one information pulse, a predetermined one of said information pulses being associated with a particular signaling station, said apparatus including means for extracting said predetermined one of said information pulses, means for deleting said frame synchronizing pulse, means for generating an effective revised frame synchronizing pulse during the time position previously occupied by said predetermined information pulse, and means for supplying an apparatus output wave corresponding to said input wave modified to delete said incoming frame synchronizing pulse and said predetermined information pulse and having added thereto a revised frame synchronizing pulse in the time position previously occupied by said predetermined information pulse.
Claim 2
Dependent Claim
122 words
Time division communication station apparatus for responding to a signal wave comprising a frame synchronizing pulse and at least one information pulse, a predetermined one of said information pulses being associated with a particular signaling station, said apparatus including means for extracting said predetermined one of said information pulses, means for deleting said frame synchronizing pulse, means for generating an effective revised frame synchronizing pulse during the time position previously occupied by said predetermined information pulse, and means for supplying an apparatus output wave corresponding to said input wave modified to delete said incoming frame synchronizing pulse and said predetermined information pulse and having added thereto a revised frame synchronizing pulse in the time position previously occupied by said predetermined information pulse.
Claim 3
Dependent Claim
48 words
A combination as in claim 1 further comprising plural cascaded station apparatus, each station apparatus further comprising transmitting means for collectively generating an output pulse train including plural information pulses, and central processing means including means for receiving said output pulse train and for supplying said signal wave.
Claim 4
Dependent Claim
40 words
A combination as in claim 2 wherein said central processing means includes means for selectively changing the digit positions of said information pulses in said signal wave vis-a-vis the digit positions of said information pulses in said output pulse train.
Claim 5
Dependent Claim
50 words
A combination as in claim 3 wherein said position changing means includes plural stage series to parallel converter and latch buffer means, an output port, plural gate means for selectively connecting said latch buffer stages to said output port, and station interconnection storage means for sequentially enabling said gate means.
References Cited (Backward Citations)
US3529089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |