US4606022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data transmission/reception network system
Assignee: Nissan Motor Co Ltd
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Filing: 1984-03-23
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Granted: 1986-08-12
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Expires: 2004-03-23
Abstract
Abstract A data transmitting/receiving network system connects a plurality of stations via a data transmission bus line in a time sharing mode. A specially encoded clocking signal cycles through a plurality of unique states and each station is allowed to transmit/receive in one of the unique cycles. Each station is equipped with serial-to-parallel reception and parallel-to-serial transmission so that a plurality of bits can be transmitted/received in each cycle. Parity error checking is performed on the transmitted/received bit parcels.
Inventors
- 👤 Tadashi Suzuki
- 👤 Norimasa Kishi
- 👤 Minoru Tomikashi
- 👤 Toru Futami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:57
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/40; H04L12/407; G; G08; G08C; G08C15/00; G08C15/06; G08C15/12; H04L12/40006; H04L12/40013
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
171 words
A network system for transmitting and receiving data between a plurality of stations via a data transmission line, said system comprising: (a) first means for generating a clock pulse train having a predetermined period and being modulated with a predetermined code signal, and for applying the modulated clock pulse train to a synchronous signal bus line connected to the plurality of stations, said code signal defining a specific address in each period of said clock pulse train, (b) second means provided in each station connected to said signal bus line for receiving the modulated clock pulse train and for detecting a specific address allocated to such station from among successive addresses defined by said modulated clock pulse train; and (c) third means provided in each station connected to said signal bus line for transmitting or receiving a plurality of bits of data serially via the transmission line during a period of said clock pulse train in which said second means detects the specific address that has been allocated to said station.
Claim 2
Dependent Claim
171 words
A network system for transmitting and receiving data between a plurality of stations via a data transmission line, said system comprising: (a) first means for generating a clock pulse train having a predetermined period and being modulated with a predetermined code signal, and for applying the modulated clock pulse train to a synchronous signal bus line connected to the plurality of stations, said code signal defining a specific address in each period of said clock pulse train, (b) second means provided in each station connected to said signal bus line for receiving the modulated clock pulse train and for detecting a specific address allocated to such station from among successive addresses defined by said modulated clock pulse train; and (c) third means provided in each station connected to said signal bus line for transmitting or receiving a plurality of bits of data serially via the transmission line during a period of said clock pulse train in which said second means detects the specific address that has been allocated to said station.
Claim 3
Dependent Claim
26 words
The system of claim 1, wherein said transmitting means includes a parity bit selectively adding circuit for adding a parity bit to said plurality of bits.
Claim 4
Dependent Claim
31 words
The system of claim 2, wherein said receiving means includes a parity bit check circuit for checking for the presence of a bit error in transmitted data including the parity bit.
Claim 5
Dependent Claim
14 words
The system of claim 1, wherein said predetermined code signal is an M-sequence signal.
Claim 6
Dependent Claim
10 words
The system of claim 1, wherein said addresses change sequentially.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-11 | 1990-02-10 | 1990-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-11 | 1994-02-10 | 1994-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-11 | 1998-02-10 | 1998-08-12 | $7700.00 | Window Closed / Lapsed |