Patent US3806714A successfully refreshed from Google Patents.
US3806714A
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Sequence controller
Assignee: Toshiba Corp
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Filing: 1972-07-19
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Granted: 1974-04-23
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Expires: 1992-07-19
Abstract
Abstract A sequence controller in which a sequence input device receives varied sequence input information representing various operating sequences without specially programming it, the sequences being expressed by contactless symbol system notation. A memory device stores the sequence information fed to the sequence input device, an input unit converts the states of external equipments into logical values, an output unit holds various output signals representing the desired states of controlled output devices and provides control outputs, and an arithmetic control circuit selects and arithmetically operates on the output signals of the input unit and the output signals of the output unit in accordance with a program stored in the memory device. The arithmetic control circuit also transmits the result of the arithmetic operation to the output unit, to thereby execute the sequence represented by the contactless symbol system.
Inventors
- 👤 K Otsuka
- 👤 T Nakagawa
- 👤 Y Shimokawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/05; G05B2219/00; G05B2219/10; G05B2219/13; G05B2219/13004; G05B2219/13128; G05B2219/15; G05B2219/15105
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
173 words
A sequence controller comprising: a sequence input device which is responsive to contactless diagram symbol inputs representing a sequence without specially programming same, and for generating electrical signals which are a function of said sequence; a memory device coupled to said sequence input device for storing the sequence information represented by said electrical signals which are generated by said sequence input device; an input unit coupled to external input devices and which converts states of said external input devices into logical values; an output unit coupled to output utilization devices and which holds signals representing output states supplied thereto and which provides control outputs; and an arithmetic control circuit coupled to said input and output units and to said memory device and responsive to said sequence information stored in said memory device, for performing arithmetic operations on signals representing the states of selected ones of the input devices and output utilization devices and for transmitting the result of said arithmetic operations to said output unit to control at least one output utilization device.
Claim 2
Dependent Claim
173 words
A sequence controller comprising: a sequence input device which is responsive to contactless diagram symbol inputs representing a sequence without specially programming same, and for generating electrical signals which are a function of said sequence; a memory device coupled to said sequence input device for storing the sequence information represented by said electrical signals which are generated by said sequence input device; an input unit coupled to external input devices and which converts states of said external input devices into logical values; an output unit coupled to output utilization devices and which holds signals representing output states supplied thereto and which provides control outputs; and an arithmetic control circuit coupled to said input and output units and to said memory device and responsive to said sequence information stored in said memory device, for performing arithmetic operations on signals representing the states of selected ones of the input devices and output utilization devices and for transmitting the result of said arithmetic operations to said output unit to control at least one output utilization device.
Claim 3
Dependent Claim
36 words
A sequence controller according to claim 1, wherein said contactless diagram symbol inputs are expressed by AND, OR, AND/OR, OR/AND, Flip-flop and SS symbolic inputs which are fed into said sequence input device as symbolic inputs.
Claim 4
Dependent Claim
90 words
A sequence controller according to claim 1, wherein said sequence input device comprises: a sequence setting means for setting a sequence expressed by said contactless diagram symbol inputs; circuit means for converting the sequence set into said setting means into said electrical signals and for shifting the said electrical signals to said memory device; a display unit which displays the contents of said memory device in said contactless diagram symbols, and a checking circuit which checks said contents of said memory device and which provides outputs to said display unit.
Claim 5
Dependent Claim
78 words
A sequence controller according to claim 1, wherein said arithmetic control circuit comprises a 1-bit register which sets contents of said input and output units, an A-register which stores the result of an arithmetic operation, a B-register which temporarily holds the contents of said A-register, and a logic operation circuit responsive to the stored sequence information for selecting the contents of said 1-bit register, said A-register and said B-register and for performing arithmetic operations on the selected contents.
Claim 6
Dependent Claim
47 words
A sequence controller according to claim 1 wherein said sequence input device includes a keyboard means having a plurality of keys, each key representing a different contactless diagram symbol, said sequence being fed into said sequence input device by selective depression of said keys of said keyboard.
Claim 7
Dependent Claim
46 words
A sequence controller according to claim 3 wherein said setting means comprises a keyboard means having a plurality of keys, each key representing a different contactless diagram symbol, said sequence being fed into said sequence input device by selective depression of said keys of said keyboard.
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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) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |