Patent US3631400A successfully refreshed from Google Patents.
US3631400A
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Data-processing system having logical storage data register
Assignee: International Business Machines Corp
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Filing: 1969-06-30
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Granted: 1971-12-28
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Expires: 1989-06-30
Abstract
Abstract A data-processing system includes a read-only storage data register in which words can be selectively ORed. A read-only storage has its output connected to the register. When the store is cycled to read out a word, the register is either reset prior to being set in accordance with the word or, the reset is inhibited whereby the contents of the word is ORed with a word previously placed in the register. A word may also be placed in the register from an alternate source such as a keyboard or a utilizing system.
Inventors
- 👤 James T Dervan
- 👤 James R Moysey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:19
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/22; G06F9/26; G06F9/262; G06F3/00; G06F3/01; G06F3/02; G06F3/0227
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
141 words
In a data-processing system having a store, the improvement comprising: a data register connected to the output of said store for receiving words therefrom, said register including a plurality of bistable devices settable according to a logic function; control means operated in synchronism with cycling of said store for providing a first signal for resetting said register and for providing a second signal for setting said register in accordance with a word read from said store; said control means including means for indicating the need to combine two words from said store in accordance with said logic function; and selectively actuated means responsive to said means for indicating inhibiting said first signal whereby the setting action of a second word from said store provides a logical combination in said register with a first word that is already stored in said register.
Claim 2
Dependent Claim
141 words
In a data-processing system having a store, the improvement comprising: a data register connected to the output of said store for receiving words therefrom, said register including a plurality of bistable devices settable according to a logic function; control means operated in synchronism with cycling of said store for providing a first signal for resetting said register and for providing a second signal for setting said register in accordance with a word read from said store; said control means including means for indicating the need to combine two words from said store in accordance with said logic function; and selectively actuated means responsive to said means for indicating inhibiting said first signal whereby the setting action of a second word from said store provides a logical combination in said register with a first word that is already stored in said register.
Claim 3
Dependent Claim
36 words
The invention of claim 1 wherein: said selectively actuated means includes a settable and resettable latch, said latch being connected to said control element whereby said latch is set in response to setting said control element.
Claim 4
Dependent Claim
31 words
The invention of claim 1 wherein: said data register includes a control portion having output lines connected to said memory for providing address bits and a memory cycle initiating signal thereto.
Claim 5
Dependent Claim
187 words
In a data-processing system, the combination comprising: a read-only store containing a plurality of addressable locations each containing a word having data bits and a control bit, said store being operative to cycle through a memory cycle in response to a GO signal and address bits, to read out the word at the addressed location; a read-only store data register coupled to the output of said store for receiving words therefrom, said register including a data portion for receiving said data bits of a word, and a control portion for receiving said control bit, said portions including a plurality of settable and resettable latches, said latches being settable in accordance with the logical OR function; means connected to said register for applying reset signals thereto in synchronism with a memory cycle; selectively operated inhibiting means connected to said last-mentioned means for inhibiting the resetting of said data portion whereby the setting action of a plurality of words provides the logical OR combination of said plurality of words in said data portion; and means responsive to a control bit placed in said register for operating said inhibiting means.
Claim 6
Dependent Claim
187 words
In a data-processing system, the combination comprising: a read-only store containing a plurality of addressable locations each containing a word having data bits and a control bit, said store being operative to cycle through a memory cycle in response to a GO signal and address bits, to read out the word at the addressed location; a read-only store data register coupled to the output of said store for receiving words therefrom, said register including a data portion for receiving said data bits of a word, and a control portion for receiving said control bit, said portions including a plurality of settable and resettable latches, said latches being settable in accordance with the logical OR function; means connected to said register for applying reset signals thereto in synchronism with a memory cycle; selectively operated inhibiting means connected to said last-mentioned means for inhibiting the resetting of said data portion whereby the setting action of a plurality of words provides the logical OR combination of said plurality of words in said data portion; and means responsive to a control bit placed in said register for operating said inhibiting means.
Claim 7
Dependent Claim
19 words
The invention of claim 4 including: a second word source connected to said data register for supplying words thereto.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |