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Class Information
Number: 326
Name: Electronic digital logic circuitry >
Description: BASIC SUBJECT MATTER OF CLASS










Class Number Class Name No. of Patents
326/17

Accelerating switching

432
326/18

Bipolar transistor

117
326/19

With schottky device

90
326/20

Complementary transistors

19
326/93

Clocking or synchronizing of logic stages or gates

1297
326/95

Field-effect transistor

630
326/98

Mosfet

851
326/96

Two or more clocks (e.g., phase clocking, etc.)

207
326/97

Mosfet

282
326/94

Metastable state prevention

161
326/52

Exclusive function (e.g., exclusive or, etc.)

193
326/54

Exclusive nor

71
326/53

Half-adder or quarter-adder

54
326/55

With field-effect transistor

108
326/104

Function of and, or, nand, nor, or not

282
326/109

Bipolar and fet

71
326/110

Bi-cmos

215
326/124

Bipolar transistor (e.g., rtl, dctl, etc.)

70
326/130

Diode-transistor logic (dtl)

21
326/131

With metal semiconductor junction diode (e.g., schottky barrier, etc.)

33
326/126

Emitter-coupled or emitter-follower logic

362
326/127

Current mode logic (cml)

165
326/128

Transistor-transistor logic (ttl)

77
326/129

Complementary transistor logic (ctl)

34
326/125

Wired logic or open collector logic (e.g., wired-or, wired-and, dotted logic, etc.)

66
326/132

With negative resistance device (e.g., tunnel diode, thyristor, etc.)

7
326/105

Decoding

306
326/106

With field-effect transistor

295
326/108

Cmos

200
326/107

Depletion or enhancement

37
326/133

Diode

14
326/134

Negative resistance diode (e.g., tunnel, gunn, etc.)

33
326/112

Field-effect transistor (e.g., jfet, etc.)

446
326/122

Complementary fet`s

55
326/119

Mosfet (i.e., metal-oxide semiconductor field-effect transistor)

315
326/121

Cmos

855
326/120

Depletion or enhancement

92
326/113

Pass transistor logic or transmission gate logic

356
326/116

Schottky-gate fet (i.e., mesfet)

49
326/117

Depletion or enhancement

58
326/118

Diode transistor logic

26
326/115

Source-coupled logic (e.g., current mode logic (cml), differential current switch logic (dcsl), etc.)

276
326/114

Wired logic (e.g., wired-or, wired-and, dotted logic, etc.)

80
326/123

With semiconductor diode or negative resistance device

11
326/135

Negative resistance device

30
326/111

Space discharge device (e.g., vacuum tube, etc.)

4
326/99

Having logic levels conveyed by signal frequency or phase

32
326/51

Inhibitor

22
326/61

Insulated gate charge transfer device

23
326/100

Integrated injection logic

132
326/62

Interface (e.g., current drive, level shift, etc.)

526
326/82

Current driving (e.g., fan in/out, off chip driving, etc.)

1124
326/89

Bipolar transistor

278
326/90

Bus driving

404
326/91

Having plural output pull-up or pull-down transistors

64
326/92

With capacitive or inductive bootstrapping

54
326/83

Field-effect transistor

2311
326/84

Bi-cmos

236
326/85

Having plural output pull-up or pull-down transistors

120
326/86

Bus driving

1861
326/87

Having plural output pull-up or pull-down transistors

922
326/88

With capacitive or inductive bootstrapping

307
326/63

Logic level shifting (i.e., interface between devices of different logic families)

418
326/64

Bi-cmos

46
326/66

Ecl to/from cmos

146
326/67

Ecl to/from ttl

30
326/65

Ttl to/from cmos

48
326/75

Bipolar transistor

96
326/77

Ecl to/from mos

55
326/78

Ecl to/from ttl

93
326/79

Integrated injection logic (i2l)

30
326/76

Ttl to/from mos

11
326/68

Field-effect transistor (e.g., jfet, mosfet, etc.)

979
326/69

Ecl to/from gaas fet (e.g., mesfet, etc.)

19
326/73

Ecl to/from mos

108
326/74

Ecl to/from ttl

19
326/70

Ttl to/from mos

67
326/71

Ttl to/from cmos

150
326/72

Using depletion or enhancement transistors

16
326/80

Supply voltage level shifting (i.e., interface between devices of a same logic family with different operating voltage levels)

733
326/81

Cmos

1340
326/136

Miscellaneous

58
326/37

Multifunctional or programmable (e.g., universal, etc.)

682
326/39

Array (e.g., pla, pal, pld, etc.)

1649
326/42

Bipolar transistor

42
326/43

Emitter-coupled logic or emitter-follower logic

49
326/44

Field effect transistor

263
326/45

Complementary fet`s

141
326/41

Significant integrated structure, layout, or layout interconnections

2307
326/40

With flip-flop or sequential device

957
326/48

Bipolar transistor

57
326/49

Field-effect transistor

134
326/50

Complementary fet`s

108
326/38

Having details of setting or programming of interconnections or logic functions

2481
326/46

Sequential (i.e., finite state machine) or with flip-flop

535
326/47

Significant integrated structure, layout, or layout interconnections

869
326/9

Reliability

251
326/14

Fail-safe

207
326/15

Parasitic prevention in integrated circuit structure

114
326/10

Redundant

203
326/11

Voter circuit (e.g., majority logic, etc.)

78
326/13

With field effect-transistor

71
326/12

With flip-flop

54
326/8

Security (e.g., access or copy prevention, etc.)

192
326/21

Signal sensitivity or transmission integrity

839
326/30

Bus or line termination (e.g., clamping, impedance matching, etc.)

2058
326/22

Input noise margin enhancement

98
326/23

With field effect-transistor

86
326/24

Complementary fet`s

81
326/25

Depletion or enhancement

19
326/26

Output switching noise reduction

627
326/27

With field effect-transistor

913
326/28

With clocking

125
326/29

Pulse shaping (e.g., squaring, etc.)

129
326/31

Signal level or switching threshold stabilization

296
326/33

Bias or power supply level stabilization

661
326/32

Temperature compensation

298
326/34

With field effect-transistor

446
326/101

Significant integrated structure, layout, or layout interconnections

673
326/102

Field-effect transistor

162
326/103

Complementary fet`s

150
326/1

Superconductor (e.g., cryogenic, etc.)

38
326/7

Function of and, or, nand, nor, or not

33
326/2

Tunneling device

13
326/6

Function of and, or, nand, nor, or not

65
326/3

Josephson tunneling device

79
326/5

Interference device (i.e., squid)

29
326/4

Plural devices (e.g., distributive device, etc.)

49
326/59

Three or more active levels (e.g., ternary, quatenary, etc.)

110
326/60

With conversion (e.g., three level to two level, etc.)

105
326/35

Threshold (e.g., majority, minority, or weighted inputs, etc.)

138
326/36

With field effect-transistor

82
326/56

Tri-state (i.e., high impedance as third state)

340
326/57

With field effect-transistor

228
326/58

Complementary fet`s

370
326/16

With test facilitating feature

530
 
 
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