BASIC SUBJECT MATTER OF CLASSThis is the generic class for electronic digital logic devices, circuitry and subcombinations thereof, wherein non-arithmetical operations are performed upon discrete electrical signals representing a value normally described by numerical digits.
COMBINATION WITH BASIC SUBJECT MATTER INCLUDED IN THIS CLASS:Included in this class (326) is subject matter relating to:1. digital circuits which perform basic logic functions such as AND, OR, NAND, NOR, EX-OR, or NOT;2. decoder, inhibitor, multifunctional, or programmable logic circuits, etc., which perform basic logic functions and are used in an environment that is not related to any particular art provided for by other classes;3. circuits that are used to control the performance of digital logic circuits, such as accelerating, switching, reliability, transmission integrity, etc.;4. circuits that are used to control the functioning or to interface logical devices or circuitry, such as driving, clocking, or synchronizing. |
-
1 • SUPERCONDUCTOR (E.G., CRYOGENIC, ETC.)
-
2 • Tunneling device
-
3 • Josephson tunneling device
-
4 • Plural devices (e.g., distributive device, etc.)
-
5 • Interference device (i.e., SQUID)
-
6 • Function of AND, OR, NAND, NOR, or NOT
-
7 • Function of AND, OR, NAND, NOR, or NOT
-
8 • SECURITY (E.G., ACCESS OR COPY PREVENTION, ETC.)
-
9 • RELIABILITY
-
10 • Redundant
-
11 • Voter circuit (e.g., majority logic, etc.)
-
12 • With flip-flop
-
13 • With field effect-transistor
-
14 • Fail-safe
-
15 • Parasitic prevention in integrated circuit structure
-
16 • WITH TEST FACILITATING FEATURE
-
17 • ACCELERATING SWITCHING
-
18 • Bipolar transistor
-
19 • With Schottky device
-
20 • Complementary transistors
-
21 • SIGNAL SENSITIVITY OR TRANSMISSION INTEGRITY
-
22 • Input noise margin enhancement
-
23 • With field effect-transistor
-
24 • Complementary FET‘s
-
25 • Depletion or enhancement
-
26 • Output switching noise reduction
-
27 • With field effect-transistor
-
28 • With clocking
-
29 • Pulse shaping (e.g., squaring, etc.)
-
30 • Bus or line termination (e.g., clamping, impedance matching, etc.)
-
31 • Signal level or switching threshold stabilization
-
32 • Temperature compensation
-
33 • Bias or power supply level stabilization
-
34 • With field effect-transistor
-
35 • THRESHOLD (E.G., MAJORITY, MINORITY, OR WEIGHTED INPUTS, ETC.)
-
36 • With field effect-transistor
-
37 • MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.)
-
38 • Having details of setting or programming of interconnections or logic functions
-
39 • Array (e.g., PLA, PAL, PLD, etc.)
-
40 • With flip-flop or sequential device
-
41 • Significant integrated structure, layout, or layout interconnections
-
42 • Bipolar transistor
-
43 • Emitter-coupled logic or emitter-follower logic
-
44 • Field effect transistor
-
45 • Complementary FET‘s
-
46 • Sequential (i.e., finite state machine) or with flip-flop
-
47 • Significant integrated structure, layout, or layout interconnections
-
48 • Bipolar transistor
-
49 • Field-effect transistor
-
50 • Complementary FET‘s
-
51 • INHIBITOR
-
52 • EXCLUSIVE FUNCTION (E.G., EXCLUSIVE OR, ETC.)
-
53 • Half-adder or quarter-adder
-
54 • Exclusive NOR
-
55 • With field-effect transistor
-
56 • TRI-STATE (I.E., HIGH IMPEDANCE AS THIRD STATE)
-
57 • With field effect-transistor
-
58 • Complementary FET‘s
-
59 • THREE OR MORE ACTIVE LEVELS (E.G., TERNARY, QUATENARY, ETC.)
-
60 • With conversion (e.g., three level to two level, etc.)
-
61 • INSULATED GATE CHARGE TRANSFER DEVICE
-
62 • INTERFACE (E.G., CURRENT DRIVE, LEVEL SHIFT, ETC.)
-
63 • Logic level shifting (i.e., interface between devices of different logic families)
-
64 • Bi-CMOS
-
65 • TTL to/from CMOS
-
66 • ECL to/from CMOS
-
67 • ECL to/from TTL
-
68 • Field-effect transistor (e.g., JFET, MOSFET, etc.)
-
69 • ECL to/from GaAs FET (e.g., MESFET, etc.)
-
70 • TTL to/from MOS
-
71 • TTL to/from CMOS
-
72 • Using depletion or enhancement transistors
-
73 • ECL to/from MOS
-
74 • ECL to/from TTL
-
75 • Bipolar transistor
-
76 • TTL to/from MOS
-
77 • ECL to/from MOS
-
78 • ECL to/from TTL
-
79 • Integrated Injection Logic (I2L)
-
80 • Supply voltage level shifting (i.e., interface between devices of a same logic family with different operating voltage levels)
-
81 • CMOS
-
82 • Current driving (e.g., fan in/out, off chip driving, etc.)
-
83 • Field-effect transistor
-
84 • Bi-CMOS
-
85 • Having plural output pull-up or pull-down transistors
-
86 • Bus driving
-
87 • Having plural output pull-up or pull-down transistors
-
88 • With capacitive or inductive bootstrapping
-
89 • Bipolar transistor
-
90 • Bus driving
-
91 • Having plural output pull-up or pull-down transistors
-
92 • With capacitive or inductive bootstrapping
-
93 • CLOCKING OR SYNCHRONIZING OF LOGIC STAGES OR GATES
-
94 • Metastable state prevention
-
95 • Field-effect transistor
-
96 • Two or more clocks (e.g., phase clocking, etc.)
-
97 • MOSFET
-
98 • MOSFET
-
99 • HAVING LOGIC LEVELS CONVEYED BY SIGNAL FREQUENCY OR PHASE
-
100 • INTEGRATED INJECTION LOGIC
-
101 • SIGNIFICANT INTEGRATED STRUCTURE, LAYOUT, OR LAYOUT INTERCONNECTIONS
-
102 • Field-effect transistor
-
103 • Complementary FET‘s
-
104 • FUNCTION OF AND, OR, NAND, NOR, or NOT
-
105 • Decoding
-
106 • With field-effect transistor
-
107 • Depletion or enhancement
-
108 • CMOS
-
109 • Bipolar and FET
-
110 • Bi-CMOS
-
111 • Space discharge device (e.g., vacuum tube, etc.)
-
112 • Field-effect transistor (e.g., JFET, etc.)
-
113 • Pass transistor logic or transmission gate logic
-
114 • Wired logic (e.g., wired-OR, wired-AND, dotted logic, etc.)
-
115 • Source-coupled logic (e.g., current mode logic (CML), differential current switch logic (DCSL), etc.)
-
116 • Schottky-gate FET (i.e., MESFET)
-
117 • Depletion or enhancement
-
118 • Diode transistor logic
-
119 • MOSFET (i.e., metal-oxide semiconductor field-effect transistor)
-
120 • Depletion or enhancement
-
121 • CMOS
-
122 • Complementary FET‘s
-
123 • With semiconductor diode or negative resistance device
-
124 • Bipolar transistor (e.g., RTL, DCTL, etc.)
-
125 • Wired logic or open collector logic (e.g., wired-OR, wired-AND, dotted logic, etc.)
-
126 • Emitter-coupled or emitter-follower logic
-
127 • Current mode logic (CML)
-
128 • Transistor-transistor logic (TTL)
-
129 • Complementary transistor logic (CTL)
-
130 • Diode-transistor logic (DTL)
-
131 • With metal semiconductor junction diode (e.g., Schottky barrier, etc.)
-
132 • With negative resistance device (e.g., tunnel diode, thyristor, etc.)
-
133 • Diode
-
134 • Negative resistance diode (e.g., tunnel, gunn, etc.)
-
135 • Negative resistance device
-
136 • MISCELLANEOUS
|
