GB1254746A - A logical circuit device - Google Patents
A logical circuit deviceInfo
- Publication number
- GB1254746A GB1254746A GB3258669A GB3258669A GB1254746A GB 1254746 A GB1254746 A GB 1254746A GB 3258669 A GB3258669 A GB 3258669A GB 3258669 A GB3258669 A GB 3258669A GB 1254746 A GB1254746 A GB 1254746A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- diode
- circuit device
- logical circuit
- emitter
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/20—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
- H03K19/21—EXCLUSIVE-OR circuits, i.e. giving output if input signal exists at only one input; COINCIDENCE circuits, i.e. giving output only if all input signals are identical
- H03K19/212—EXCLUSIVE-OR circuits, i.e. giving output if input signal exists at only one input; COINCIDENCE circuits, i.e. giving output only if all input signals are identical using bipolar transistors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Logic Circuits (AREA)
Abstract
1,254,746. Transistor logic circuits. TOKYO SHIBAURA ELECTRIC CO. Ltd. 27 June, 1969 [3 July, 1968], No. 32586/69. Heading H3T. An "exclusive OR" or "PARITY" circuit comprises input terminals for two signals, each connected to the emitter of a corresponding one of two transistors and through a diode to the base of the other. As shown, only when the input signals differ by more than the threshold voltage of a transistor and a diode does a transistor conduct and so cut off output transistor 12. The voltage dropping diode may be replaced by a transistor connected as a diode or by an emitter follower.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4603468A JPS4918029B1 (en) | 1968-07-03 | 1968-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1254746A true GB1254746A (en) | 1971-11-24 |
Family
ID=12735739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3258669A Expired GB1254746A (en) | 1968-07-03 | 1969-06-27 | A logical circuit device |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS4918029B1 (en) |
DE (1) | DE1933860A1 (en) |
FR (1) | FR2012225A1 (en) |
GB (1) | GB1254746A (en) |
NL (1) | NL6910026A (en) |
-
1968
- 1968-07-03 JP JP4603468A patent/JPS4918029B1/ja active Pending
-
1969
- 1969-06-27 GB GB3258669A patent/GB1254746A/en not_active Expired
- 1969-07-01 NL NL6910026A patent/NL6910026A/xx unknown
- 1969-07-02 FR FR6922349A patent/FR2012225A1/fr active Pending
- 1969-07-03 DE DE19691933860 patent/DE1933860A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS4918029B1 (en) | 1974-05-07 |
NL6910026A (en) | 1970-01-06 |
DE1933860A1 (en) | 1970-01-15 |
FR2012225A1 (en) | 1970-03-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1094089A (en) | Current limiter circuit | |
GB1109820A (en) | Multiple level logic circuitry | |
GB1384594A (en) | Solid-state electronic relay | |
GB1012691A (en) | Electrical circuits for logic functions | |
GB1450119A (en) | Logic circuits | |
GB889314A (en) | Improvements in or relating to electric gating circuits | |
GB813860A (en) | Improvements in or relating to transistor circuits | |
GB1263128A (en) | Low voltage level interface circuit | |
GB914848A (en) | Improvements in tunnel diode frequency changes | |
GB990682A (en) | Bistable trigger circuit | |
GB1254746A (en) | A logical circuit device | |
GB1112201A (en) | High speed,low dissipation logic gates | |
GB1005549A (en) | Transistor circuits | |
GB1265692A (en) | ||
GB1101855A (en) | Improvements relating to transistor circuits | |
GB1222688A (en) | Logic circuit | |
GB1057917A (en) | Improvements in switching circuits | |
GB1103797A (en) | Improvements in switching circuits | |
GB1286036A (en) | Automatic signal level control for an amplifier | |
GB1099887A (en) | Switching circuit | |
NL300519A (en) | ||
GB996886A (en) | Improvements in and relating to electrical switching devices | |
GB990286A (en) | Transmission gating circuit | |
GB1098875A (en) | Parity check gate circuit | |
GB1128954A (en) | Bistable circuit with two mutual feedback transistors |