GB806457A - Shifting registers - Google Patents
Shifting registersInfo
- Publication number
- GB806457A GB806457A GB33070/55A GB3307055A GB806457A GB 806457 A GB806457 A GB 806457A GB 33070/55 A GB33070/55 A GB 33070/55A GB 3307055 A GB3307055 A GB 3307055A GB 806457 A GB806457 A GB 806457A
- Authority
- GB
- United Kingdom
- Prior art keywords
- trigger
- triggers
- pulse
- shift
- diodes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/20—Digital stores in which the information is moved stepwise, e.g. shift registers using discharge tubes
- G11C19/202—Digital stores in which the information is moved stepwise, e.g. shift registers using discharge tubes with vacuum tubes
Landscapes
- Details Of Television Scanning (AREA)
- Logic Circuits (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
806,457. Pattern-movement stepping registers. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 18, 1955 [Nov. 19, 1954], No. 33070/55. Class 106 (1). A shifting register comprising a plurality of cascade connected electrical triggers is characterized in that in shift operations shifting pulses are only applied to those triggers that have to change their states. This is achieved by applying the shift pulses " sync," Figs. 3, 4, each of which appears in inverted form on lines 24 and 26, to the triggers (Fig. 1, not shown), via diode gates each of which is effective to pass either a positive or a negative shift pulse if the states of the two adjacent triggers are different. Consider for example the coupling between triggers T1 and T2 during the third time period shown in Fig. 4, which extends from sync pulse 2 to sync pulse 3. During this period trigger T1 is on, its output terminal 18 is at +25v, and trigger T2 is off, its terminal 18 being at - 25v and its inverse output being at +25v. Thus the potential of the common point of the two diodes 25, 27 is also +25v. However, on the occurrence of the third sync pulse this point is clamped to zero potential by the action of the diodes, and thus a negative pulse is transmitted to trigger T2 to put it on. Had trigger T2 been on initially then the potential of its inverse output would have been - 25v, the junction of the diodes would have been at zero volts, since resistors 19 and 21 are equal, and on the occurrence of the third shift pulse the junction of the diodes would remain at the same potential and no pulse is passed to trigger T2. In further embodiments, each trigger has a double diode gate, as in Fig. 3, attached to both sides (Fig. 8, not shown), and a number of such triggers are used in Fig. 9 as a reversible shifting register-the shift leads that are not being used being clamped to zero volts-and in Fig. 10, as a two dimensional matrix store with provision for shifting vertically and horizontally. A similar store, but of n-dimensions, is also described (Fig. 19, not shown). Further registers are also described with means for complementing, for parallel entry of data, and for reversing the order of the digits in the register (Figs. 17, 6 and 18 respectively, not shown). Each trigger could employ point contact transistors in place of triodes (Fig. 16, not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US469895A US2988701A (en) | 1954-11-19 | 1954-11-19 | Shifting registers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB806457A true GB806457A (en) | 1958-12-23 |
Family
ID=23865453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33070/55A Expired GB806457A (en) | 1954-11-19 | 1955-11-18 | Shifting registers |
Country Status (8)
Country | Link |
---|---|
US (1) | US2988701A (en) |
BE (1) | BE542893A (en) |
CA (1) | CA583272A (en) |
CH (1) | CH338316A (en) |
DE (1) | DE1044465B (en) |
FR (1) | FR1152098A (en) |
GB (1) | GB806457A (en) |
NL (2) | NL202100A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3103597A (en) * | 1963-09-10 | Bistable diode switching circuits | ||
US3281788A (en) * | 1961-11-03 | 1966-10-25 | Ultronic Systems Corp | Data retrieval and coupling system |
US3119031A (en) * | 1962-01-29 | 1964-01-21 | Thompson Ramo Wooldridge Inc | Shift register with input memory converting logic level signals to positive or negative clock pulses |
US3267433A (en) * | 1962-08-24 | 1966-08-16 | Ibm | Computing system with special purpose index registers |
US3289165A (en) * | 1962-10-12 | 1966-11-29 | Berkeley Instr | Programming and telemetering system and apparatus |
US3307045A (en) * | 1964-03-04 | 1967-02-28 | Burroughs Corp | Transformer control circuits for flip-flops |
US3348069A (en) * | 1965-05-07 | 1967-10-17 | Fabri Tek Inc | Reversible shift register with simultaneous reception and transfer of information byeach stage |
US3516665A (en) * | 1967-10-04 | 1970-06-23 | Doban Labs Inc | Automatic bowling scorekeeping system |
US3824478A (en) * | 1972-08-07 | 1974-07-16 | Electron Emission Syst Inc | Shift register |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2688078A (en) * | 1946-02-21 | 1954-08-31 | Us Navy | Multivibrator |
US2557729A (en) * | 1948-07-30 | 1951-06-19 | Eckert Mauchly Comp Corp | Impulse responsive network |
US2560751A (en) * | 1949-01-11 | 1951-07-17 | Stromberg Carlson Co | Phase inversion circuits for cathode-ray tubes |
US2700502A (en) * | 1949-01-19 | 1955-01-25 | Ibm | Multidigit shifting device |
US2594731A (en) * | 1949-07-14 | 1952-04-29 | Teleregister Corp | Apparatus for displaying magnetically stored data |
BE495917A (en) * | 1949-10-21 | |||
US2666575A (en) * | 1949-10-26 | 1954-01-19 | Gen Electric | Calculating device |
US2633528A (en) * | 1950-04-03 | 1953-03-31 | Leroy S Hutson | Electronic pulse modulator switch |
IT482175A (en) * | 1950-11-28 | |||
BE512434A (en) * | 1951-06-27 | |||
US2719228A (en) * | 1951-08-02 | 1955-09-27 | Burroughs Corp | Binary computation circuit |
GB738739A (en) * | 1951-09-15 | 1955-10-19 | Emi Ltd | Improvements relating to electronic binary registers |
GB738738A (en) * | 1951-09-15 | 1955-10-19 | Emi Ltd | Improvements relating to number registers suitable for use in binary computing devices |
NL105527C (en) * | 1951-12-31 | |||
US2816226A (en) * | 1952-02-21 | 1957-12-10 | Hughes Aircraft Co | Counter circuit |
US2808203A (en) * | 1952-02-28 | 1957-10-01 | Gen Electric | Binary shift register |
US2647999A (en) * | 1952-05-01 | 1953-08-04 | Research Corp | Bistable circuits |
NL180037B (en) * | 1952-07-21 | Dana Corp | FRICTION COUPLING AND CONNECTION RING FOR USE WITH THIS CLUTCH. | |
NL185742B (en) * | 1953-04-20 | Motorola Inc | SEMI-CONDUCTOR SWITCHING DEVICE CONSISING OF A LIGHT-CONTROLLED THYRISTOR SWITCH FOR BOTH DIRECTIONS OF CURRENT. | |
US2802940A (en) * | 1953-06-26 | 1957-08-13 | Bell Telephone Labor Inc | Multivibrator circuit |
US2706811A (en) * | 1954-02-12 | 1955-04-19 | Digital Control Systems Inc | Combination of low level swing flipflops and a diode gating network |
-
0
- CA CA583272A patent/CA583272A/en not_active Expired
- NL NL127923D patent/NL127923C/xx active
- BE BE542893D patent/BE542893A/xx unknown
- NL NL202100D patent/NL202100A/xx unknown
-
1954
- 1954-11-19 US US469895A patent/US2988701A/en not_active Expired - Lifetime
-
1955
- 1955-11-08 FR FR1152098D patent/FR1152098A/en not_active Expired
- 1955-11-18 CH CH338316D patent/CH338316A/en unknown
- 1955-11-18 GB GB33070/55A patent/GB806457A/en not_active Expired
- 1955-11-19 DE DEI10914A patent/DE1044465B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR1152098A (en) | 1958-02-11 |
DE1044465B (en) | 1958-11-20 |
NL127923C (en) | |
CA583272A (en) | 1959-09-15 |
CH338316A (en) | 1959-05-15 |
NL202100A (en) | |
BE542893A (en) | |
US2988701A (en) | 1961-06-13 |
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