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Class Information
Number: 326/129
Name: Electronic digital logic circuitry > Function of and, or, nand, nor, or not > Bipolar transistor (e.g., rtl, dctl, etc.) > Transistor-transistor logic (ttl) > Complementary transistor logic (ctl)
Description: Subject matter wherein the logic function unit includes transistors of opposite conductivity type (e.g., npn and pnp type, etc.).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7106093 |
Semiconductor device |
Sep. 12, 2006 |
| 6507929 |
System and method for diagnosing and repairing errors in complementary logic |
Jan. 14, 2003 |
| 6502220 |
Complementary logic error detection and correction |
Dec. 31, 2002 |
| 6253350 |
Method and system for detecting errors within complementary logic circuits |
Jun. 26, 2001 |
| 5550804 |
Data bus system |
Aug. 27, 1996 |
| 5495099 |
High speed super push-pull logic (SPL) circuit using bipolar technology |
Feb. 27, 1996 |
| 5053645 |
Threshold logic circuit |
Oct. 1, 1991 |
| 4943740 |
Ultra fast logic |
Jul. 24, 1990 |
| 4912341 |
TTL buffer circuit with active turn-off |
Mar. 27, 1990 |
| 4868904 |
Complementary noise-immune logic |
Sep. 19, 1989 |
| 4841173 |
Bipolar logic circuit |
Jun. 20, 1989 |
| 4829198 |
Fault tolerant logical circuitry |
May. 9, 1989 |
| 4803383 |
Transistor-transistor logic circuit |
Feb. 7, 1989 |
| 4709166 |
Complementary cascoded logic circuit |
Nov. 24, 1987 |
| 4704544 |
Complementary current mirror logic |
Nov. 3, 1987 |
| 4689502 |
Gate array LSI device using PNP input transistors to increase the switching speed of TTL buffers |
Aug. 25, 1987 |
| 4682059 |
Comparator input stage for interface with signal current |
Jul. 21, 1987 |
| 4668879 |
Dotted "or" function for current controlled gates |
May. 26, 1987 |
| 4634898 |
TTL buffer circuit incorporating active pull-down transistor |
Jan. 6, 1987 |
| 4507575 |
NAND Logic gate circuit having improved response time |
Mar. 26, 1985 |
| 4471239 |
TTL Fundamental logic circuit |
Sep. 11, 1984 |
| 4449063 |
Logic circuit with improved switching |
May. 15, 1984 |
| 4445052 |
TTL Input current reduction circuit |
Apr. 24, 1984 |
| 4433258 |
Complementary Schottky transistor logic circuit |
Feb. 21, 1984 |
| 4398103 |
Enabling circuitry for logic circuits |
Aug. 9, 1983 |
| 4306159 |
Bipolar inverter and NAND logic circuit with extremely low DC standby power |
Dec. 15, 1981 |
| 4253035 |
High-speed, low-power, ITL compatible driver for a diode switch |
Feb. 24, 1981 |
| 4048517 |
Logic element |
Sep. 13, 1977 |
| T957007 |
Voltage-mode logic circuitry with improved input/output characteristics |
Apr. 5, 1977 |
| 3999080 |
Transistor coupled logic circuit |
Dec. 21, 1976 |
| 3987310 |
Schottky diode - complementary transistor logic |
Oct. 19, 1976 |
| 3978349 |
Switching circuit |
Aug. 31, 1976 |
| 3956641 |
Complementary transistor circuit for carrying out boolean functions |
May. 11, 1976 |
| 3947865 |
Collector-up semiconductor circuit structure for binary logic |
Mar. 30, 1976 |
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