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Class Information
Number: 326/130
Name: Electronic digital logic circuitry > Function of and, or, nand, nor, or not > Bipolar transistor (e.g., rtl, dctl, etc.) > Diode-transistor logic (dtl)
Description: Subject matter wherein diodes are active switching elements responsive to respective input logic signals for providing logical function outputs which control output transistor elements.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6696851 |
Reception line break detection apparatus |
Feb. 24, 2004 |
| 6255857 |
Signal level shifting circuits |
Jul. 3, 2001 |
| 6215330 |
Differential diode transistor logic (DDTL) circuit enhancements |
Apr. 10, 2001 |
| 6020764 |
Emitter coupled logic circuitry with additional discharge path |
Feb. 1, 2000 |
| 5920206 |
Differential ECL |
Jul. 6, 1999 |
| 5521558 |
Inverter stage having diode load and ring oscillator using same |
May. 28, 1996 |
| 5134315 |
Synchronous counter terminal count output circuit |
Jul. 28, 1992 |
| 5126593 |
Method and circuitry for reducing output transients resulting from internal ground instabilities |
Jun. 30, 1992 |
| 4950927 |
Logic circuits for forming VLSI logic networks |
Aug. 21, 1990 |
| 4677316 |
Logic circuit with threshold and built-in safety |
Jun. 30, 1987 |
| 4656367 |
Speed up of up-going transition of TTL or DTL circuits under high _capacitive load |
Apr. 7, 1987 |
| 4626710 |
Low power logic circuit with storage charge control for fast switching |
Dec. 2, 1986 |
| 4593210 |
Switching circuit with active pull-off |
Jun. 3, 1986 |
| 4417159 |
Diode-transistor active pull up driver |
Nov. 22, 1983 |
| 4400635 |
Wide temperature range switching circuit |
Aug. 23, 1983 |
| 4228371 |
Logic circuit |
Oct. 14, 1980 |
| 4107547 |
Logic circuit for a semiconductor integrated circuit |
Aug. 15, 1978 |
| 4054803 |
Matcher circuit |
Oct. 18, 1977 |
| T957007 |
Voltage-mode logic circuitry with improved input/output characteristics |
Apr. 5, 1977 |
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