| Class Number |
Class Name |
No. of Patents |
| 327/509 |
External effect |
121 |
| 327/514 |
Light |
567 |
| 327/515 |
Elements forming an array |
137 |
| 327/510 |
Magnetic |
101 |
| 327/511 |
Utilizing hall effect |
128 |
| 327/517 |
Responsive to proximity or touch |
79 |
| 327/512 |
Temperature |
428 |
| 327/513 |
With compensation for temperature fluctuations |
671 |
| 327/516 |
Utilizing conversion of mechanical variations into electrical variations (e.g., vibration sensitive, etc.) |
42 |
| 327/365 |
Gating (i.e., switching input to output) |
193 |
| 327/374 |
Accelerating switching |
244 |
| 327/375 |
Saturation prevention |
67 |
| 327/377 |
Turn-off |
127 |
| 327/376 |
Turn-on |
85 |
| 327/378 |
Compensation for variations in external physical values (e.g., temperature, etc.) |
159 |
| 327/407 |
Converging with plural inputs and single output |
468 |
| 327/411 |
Bipolar transistor |
65 |
| 327/412 |
Push-pull circuit |
17 |
| 327/413 |
With complementary transistor devices |
9 |
| 327/414 |
Electron tube |
20 |
| 327/408 |
Field-effect transistor |
259 |
| 327/409 |
Push-pull circuit |
33 |
| 327/410 |
With complementary transistor devices |
45 |
| 327/392 |
Delay controlled switch (e.g., fixed, single time of delay control, etc.) |
105 |
| 327/398 |
For predetermined time period |
54 |
| 327/402 |
Including negative resistance device in delay circuit (e.g., unijunction transistor, etc.) |
22 |
| 327/400 |
Propagation through plural delay devices or paths |
26 |
| 327/399 |
With field-effect device |
74 |
| 327/401 |
With plural switching elements (e.g., sequential, etc.) |
41 |
| 327/393 |
With variable or multiple adjustable time of delay control (e.g., variable charge-discharge, on-delay/off-delay control, etc.) |
103 |
| 327/397 |
Including negative resistance device in delay circuit (e.g., unijunction transistor, etc.) |
17 |
| 327/395 |
Propagation through plural delay devices or paths |
39 |
| 327/394 |
With field-effect device |
56 |
| 327/396 |
With plural switching elements (e.g., sequential, etc.) |
33 |
| 327/415 |
Diverging with single input and plural outputs |
84 |
| 327/417 |
Bipolar transistor |
17 |
| 327/418 |
Electron tube |
7 |
| 327/416 |
Field-effect transistor |
34 |
| 327/403 |
Parallel controlled paths |
197 |
| 327/405 |
Bipolar transistor |
44 |
| 327/406 |
Electron tube |
1 |
| 327/404 |
Field-effect transistor |
187 |
| 327/379 |
Signal transmission integrity or spurious noise override |
360 |
| 327/387 |
Control signal derived from or responsive to input signal |
139 |
| 327/388 |
Additional external control signal |
26 |
| 327/383 |
Ensuring fully conducting state |
23 |
| 327/389 |
Insulated gate fet (e.g., mosfet, etc.) |
187 |
| 327/391 |
Complementary metal-oxide semiconductor (cmos) |
196 |
| 327/390 |
With capacitive bootstrapping |
276 |
| 327/382 |
Parasitic prevention or compensation (e.g., parasitic capacitance, etc.) |
134 |
| 327/380 |
Preventing quick rise gating current (i.e., di/dt) |
76 |
| 327/381 |
Preventing quick rise gating voltage (i.e., dv/dt) |
73 |
| 327/384 |
Switch noise signal |
178 |
| 327/385 |
Contact bounce from mechanical switch |
39 |
| 327/386 |
With clock input |
21 |
| 327/366 |
Superconductive (e.g., cryogenic, etc.) device |
42 |
| 327/368 |
Critical current control |
8 |
| 327/369 |
External control (e.g., piezoelectric, light, etc.) |
11 |
| 327/370 |
Magnetic field control |
9 |
| 327/371 |
Temperature control |
11 |
| 327/372 |
Inductive effect |
6 |
| 327/367 |
Josephson junction |
48 |
| 327/373 |
Layout |
6 |
| 327/506 |
Three or more electrode electron tube |
3 |
| 327/507 |
Two electrode electron tube |
1 |
| 327/508 |
Bridge circuit |
5 |
| 327/419 |
Utilizing three or more electrode solid-state device |
35 |
| 327/425 |
Bilateral transistor |
13 |
| 327/426 |
Plural |
2 |
| 327/478 |
Bipolar transistor |
129 |
| 327/482 |
Plural |
198 |
| 327/487 |
Control circuit in cascade |
30 |
| 327/488 |
Control circuit in totem pole |
8 |
| 327/492 |
Control circuit with common collector |
10 |
| 327/489 |
Control circuit with common emitter |
23 |
| 327/490 |
With current mirror |
28 |
| 327/491 |
With emitter follower |
29 |
| 327/483 |
Darlington connection |
120 |
| 327/484 |
Opposite conductively (i.e., complementary) |
142 |
| 327/485 |
Control circuit in cascade |
15 |
| 327/486 |
Control circuit in totem pole |
5 |
| 327/479 |
Special four or more electrode device (e.g., multiple bases, three electrode bipolar with fet gate, etc.) |
19 |
| 327/481 |
Multiple collector transistor |
38 |
| 327/480 |
Multiple emitter transistor |
27 |
| 327/420 |
Breakdown characteristic (e.g., punch-through, tunneling, etc.) |
9 |
| 327/422 |
Avalanche |
6 |
| 327/421 |
Zener |
45 |
| 327/423 |
Bridge circuit |
97 |
| 327/424 |
Field-effect transistor |
76 |
| 327/427 |
Field-effect transistor |
738 |
| 327/429 |
Four or more electrode solid-state device |
20 |
| 327/434 |
Insulated gate fet (e.g., mosfet, etc.) |
462 |
| 327/437 |
Complementary metal-oxide semiconductor (cmos) |
341 |
| 327/435 |
Gaas |
23 |
| 327/436 |
Plural devices in series |
91 |
| 327/430 |
Jfet (i.e., junction field-effect transistor) |
65 |
| 327/431 |
Mesfet (i.e., metal semiconductor field-effect transistor) |
33 |
| 327/432 |
With bipolar transistor |
293 |
| 327/433 |
Bi-cmos |
63 |
| 327/428 |
With silicon controlled rectifier (scr) |
37 |
| 327/438 |
Four or more layer device (e.g., thyristor, etc.) |
131 |
| 327/447 |
Ac supply |
28 |
| 327/448 |
Device in bridge |
17 |
| 327/450 |
Four electrodes |
12 |
| 327/464 |
Having plural four or more layer devices |
17 |
| 327/449 |
Put (i.e., programmable unijunction transistor) |
8 |
| 327/453 |
Silicon controlled rectifier (scr) |
27 |
| 327/460 |
Plural scr`s |
40 |
| 327/461 |
Inverse parallel connection |
37 |
| 327/462 |
With bipolar transistor |
6 |
| 327/455 |
Triac |
57 |
| 327/457 |
Combined with diac |
20 |
| 327/458 |
Combined with diverse four or more layer device |
16 |
| 327/456 |
Plural |
43 |
| 327/459 |
With bipolar transistor |
33 |
| 327/463 |
With bipolar transistor |
36 |
| 327/454 |
With unijunction transistor |
5 |
| 327/451 |
Zero point switching |
62 |
| 327/452 |
With triac |
36 |
| 327/439 |
Bipolar transistor circuit configuring scr device |
50 |
| 327/444 |
Complex wave supply |
3 |
| 327/445 |
Silicon controlled rectifier (scr) |
9 |
| 327/446 |
Triac |
8 |
| 327/465 |
Dc supply |
33 |
| 327/467 |
Four electrodes |
12 |
| 327/470 |
Plural devices |
33 |
| 327/473 |
Parallel connection |
30 |
| 327/471 |
Series anode-cathode connection |
29 |
| 327/472 |
Plural paths |
12 |
| 327/474 |
With bipolar transistor |
28 |
| 327/466 |
Put (i.e., programmable unijunction transistor) |
4 |
| 327/475 |
Scr and bipolar transistor |
63 |
| 327/468 |
Scr and unijunction transistor |
5 |
| 327/469 |
Triac |
13 |
| 327/440 |
Gto (i.e., gate turnoff) |
108 |
| 327/441 |
Plural or combined with other four or more layer device |
29 |
| 327/442 |
Separate on and off control circuit |
40 |
| 327/443 |
Transformer or inductor in control circuit |
39 |
| 327/476 |
Triac |
43 |
| 327/477 |
Unijunction transistor (ujt) |
2 |
| 327/493 |
Utilizing two electrode solid-state device |
55 |
| 327/502 |
Breakdown characteristic (e.g., zener diode, etc.) |
116 |
| 327/494 |
Bridge circuit |
71 |
| 327/497 |
Active element in diagonal arm |
10 |
| 327/495 |
Combined with diverse device in at least one arm |
1 |
| 327/496 |
Plural |
16 |
| 327/498 |
Negative resistance |
11 |
| 327/499 |
"n"-shape curve on i-v plot (e.g., tunnel diode type, etc.) |
7 |
| 327/500 |
"s"-shape curve on i-v plot (e.g., pnpn diode type, etc.) |
1 |
| 327/501 |
Hyperconductive diode |
0 |
| 327/503 |
Pin diode |
19 |
| 327/504 |
Pn junction diode |
26 |
| 327/505 |
Inverse parallel connection |
5 |
| 327/603 |
Miscellaneous |
30 |
| 327/100 |
Signal converting, shaping, or generating |
542 |
| 327/306 |
Amplitude control |
403 |
| 327/307 |
Baseline or dc offset correction |
426 |
| 327/309 |
By limiting, clipping, or clamping |
462 |
| 327/324 |
By using diverse-type nonlinear devices |
51 |
| 327/317 |
Distortion compensation |
115 |
| 327/323 |
Feedback |
109 |
| 327/318 |
In input or output circuit |
144 |
| 327/321 |
Clamping of output to voltage level |
175 |
| 327/319 |
For interstage coupling |
99 |
| 327/320 |
Using diode |
66 |
| 327/322 |
Of output current |
83 |
| 327/315 |
Providing constant input/output amplitude level ratio |
38 |
| 327/316 |
By feedback control |
44 |
| 327/310 |
Transient or signal noise reduction |
354 |
| 327/312 |
By feedback limiting-clamping |
144 |
| 327/311 |
By filtering |
135 |
| 327/313 |
Using 3 or more terminal type nonlinear devices only |
154 |
| 327/314 |
Using diode type nonlinear devices only |
98 |
| 327/325 |
Using only diode active elements |
69 |
| 327/326 |
Avalanche or negative resistance device (e.g., zener diode, tunnel diode, etc.) |
41 |
| 327/327 |
Using only transistor active elements |
105 |
| 327/328 |
Field-effect type device |
158 |
| 327/330 |
With rectifier or nonlinear impedance |
60 |
| 327/329 |
With tuned circuit |
8 |
| 327/333 |
Interstage coupling (e.g., level shift, etc.) |
1000 |
| 327/331 |
Maintaining constant level output |
91 |
| 327/332 |
With feedback |
80 |
| 327/308 |
Variable attenuator |
219 |
| 327/124 |
By periodic switching (e.g., chopper, etc.) |
142 |
| 327/291 |
Clock or pulse waveform generating |
796 |
| 327/292 |
Clock fault compensation or redundant clocks |
356 |
| 327/295 |
Plural outputs |
480 |
| 327/297 |
Clock bus |
122 |
| 327/296 |
Plural clock outputs with multiple inputs |
102 |
| 327/298 |
Single clock output with multiple inputs |
322 |
| 327/299 |
Single clock output with single clock input or data input |
258 |
| 327/301 |
With electron beam type tube |
14 |
| 327/305 |
With gas tube |
4 |
| 327/304 |
With inductive device (e.g., transformer, etc.) |
59 |
| 327/293 |
With plural paths in network |
223 |
| 327/294 |
With common output |
191 |
| 327/303 |
With rectifier |
30 |
| 327/300 |
With saturable inductance |
7 |
| 327/302 |
With storage diode |
2 |
| 327/101 |
Converting input current or voltage to output frequency |
145 |
| 327/102 |
Converting input frequency to output current or voltage |
108 |
| 327/103 |
Converting input voltage to output current or vice versa |
326 |
| 327/104 |
Converting, per se, of an ac input to corresponding dc at an unloaded output |
123 |
| 327/108 |
Current driver |
1778 |
| 327/111 |
Having capacitive load |
200 |
| 327/112 |
Push-pull |
831 |
| 327/110 |
Having inductive load (e.g., coil, etc.) |
387 |
| 327/109 |
Having semiconductive load |
379 |
| 327/182 |
Delay line or capacitor storage element charged or discharged through or by a relaxation oscillator type circuit to form pulse |
30 |
| 327/183 |
Delay line or capacitor storage element charges or discharges through a tube to form pulse |
45 |
| 327/181 |
Electromagnetic pulse forming |
80 |
| 327/113 |
Frequency or repetition rate conversion or control |
497 |
| 327/117 |
Frequency division |
311 |
| 327/118 |
Having discrete active device (e.g., transistor, triode, etc.) |
45 |
| 327/119 |
Frequency multiplication (e.g., harmonic generation, etc.) |
222 |
| 327/122 |
Doubling |
112 |
| 327/123 |
With particular tube or distributed parameter element |
13 |
| 327/120 |
With plural outputs |
25 |
| 327/121 |
Selective |
27 |
| 327/114 |
Of output rectangular waveform |
208 |
| 327/115 |
Frequency division |
419 |
| 327/116 |
Frequency multiplication |
282 |
| 327/125 |
Generating parabolic or hyperbolic output |
19 |
| 327/164 |
Generating rectangular (e.g., clock, etc.) or pulse waveform having random characteristic (e.g., random width, etc.) |
90 |
| 327/131 |
Generating sawtooth or triangular output |
174 |
| 327/135 |
Having digital element |
41 |
| 327/137 |
Having feedback |
48 |
| 327/139 |
Having inductive load |
9 |
| 327/136 |
Having particular delay or sync |
35 |
| 327/138 |
Having temperature compensation |
12 |
| 327/140 |
With amplitude control |
46 |
| 327/132 |
With current source or current mirror |
99 |
| 327/133 |
With distortion control (e.g., linearization, etc.) |
49 |
| 327/134 |
With slope or duration control |
120 |
| 327/129 |
Generating sinusoidal output |
126 |
| 327/126 |
Generating staircase output |
68 |
| 327/127 |
With differential amplifier |
10 |
| 327/128 |
With rectifying element |
3 |
| 327/130 |
Generating trapezoidal output |
39 |
| 327/261 |
Having specific delay in producing output waveform |
443 |
| 327/263 |
Delay interval set by rising or falling edge |
215 |
| 327/264 |
Having specific active circuit element or structure (e.g., fet, complementary transistors, etc.) |
133 |
| 327/266 |
Differential amplifier |
59 |
| 327/267 |
Electron tube |
3 |
| 327/265 |
With counter |
55 |
| 327/268 |
Having specific passive circuit element or structure (e.g., rlc circuit, etc.) |
19 |
| 327/285 |
Having specific active circuit element or structure (e.g., complementary transistors, etc.) |
109 |
| 327/287 |
Differential amplifier |
83 |
| 327/289 |
Electron tube |
1 |
| 327/288 |
Field-effect transistor |
148 |
| 327/286 |
With counter |
54 |
| 327/290 |
Having specific passive circuit element or structure (e.g., rlc circuit, etc.) |
30 |
| 327/284 |
Including delay line or charge transfer device |
258 |
| 327/262 |
Including significant compensation (e.g., temperature compensated delay, etc.) |
217 |
| 327/269 |
Multiple outputs with plurality of delay intervals |
185 |
| 327/272 |
Having specific active circuit element or structure(e.g., fet, complementary transistors, etc.) |
56 |
| 327/274 |
Differential amplifier |
53 |
| 327/275 |
Electron tube |
0 |
| 327/273 |
With counter |
47 |
| 327/271 |
Including delay line or charge transfer device |
117 |
| 327/270 |
Variable or adjustable |
213 |
| 327/276 |
Single output with variable or selectable delay |
473 |
| 327/278 |
Having specific active circuit element or structure (e.g., complementary transistors, etc.) |
173 |
| 327/280 |
Differential amplifier |
96 |
| 327/282 |
Electron tube |
1 |
| 327/281 |
Field-effect transistor |
155 |
| 327/279 |
With counter |
66 |
| 327/283 |
Having specific passive circuit element or structure (e.g., rlc circuit, etc.) |
33 |
| 327/277 |
Including delay line or charge transfer device |
290 |
| 327/171 |
Output pulses having opposite polarities |
65 |
| 327/185 |
Particular stable state circuit (e.g., tristable, etc.) |
88 |
| 327/199 |
Circuit having only two stable states (i.e., bistable) |
240 |
| 327/214 |
Complementary transistors |
63 |
| 327/200 |
Dynamic bistable |
121 |
| 327/201 |
Complementary clock inputs |
74 |
| 327/215 |
Having at least two cross-coupling paths |
186 |
| 327/218 |
D type input |
308 |
| 327/216 |
Jk type input |
22 |
| 327/219 |
Particular device at input, output, or in cross-coupling path |
62 |
| 327/221 |
Parallel rc network in cross-coupling path |
3 |
| 327/222 |
Resistor in cross-coupling path |
8 |
| 327/220 |
With diode |
15 |
| 327/217 |
Rs or rst type input |
155 |
| 327/207 |
Including diverse solid state devices (e.g., fet/bipolar, etc.) |
23 |
| 327/208 |
Including field-effect transistor |
459 |
| 327/210 |
Cmos |
150 |
| 327/211 |
With clock input |
208 |
| 327/209 |
Including enhancement and depletion devices |
17 |
| 327/212 |
With clock input |
197 |
| 327/213 |
Plural independent clock inputs (i.e., non complementary ) |
41 |
| 327/202 |
Master-slave bistable latch |
385 |
| 327/203 |
Including field-effect transistor |
291 |
| 327/204 |
Including multi-emitter or multi-collector bipolar transistor |
30 |
| 327/223 |
Plural transistors of same conductivity type |
39 |
| 327/205 |
Using hysteresis (e.g., schmitt trigger, etc.) |
277 |
| 327/206 |
Including field-effect transistor |
214 |
| 327/225 |
With logic element (e.g., nor gate, etc.) |
105 |
| 327/226 |
With single electron tube |
0 |
| 327/224 |
With single semiconductor device |
7 |
| 327/197 |
Convertible circuit (e.g., bistable to monostable, d-type to t-type, etc.) |
42 |
| 327/187 |
External effect device (e.g., light, heat, magnetic, or mechanical force sensitive devices, etc.) |
46 |
| 327/198 |
Initializing, resetting, or protecting a steady state condition |
651 |
| 327/188 |
Minority carrier storage effect |
14 |
| 327/189 |
Storage diode (e.g., step recovery, etc.) |
7 |
| 327/227 |
Monostable |
146 |
| 327/228 |
Having cross-coupled paths |
12 |
| 327/229 |
Having differential circuitry |
16 |
| 327/230 |
With external feedback (i.e., output to input) |
22 |
| 327/195 |
Negative resistance diode having "n"-shape characteristic on i-v plot (e.g., tunnel diode, backward diode, etc.) |
23 |
| 327/196 |
Negative resistance diode having "s"-shape characteristic on i-v plot (e.g., four or more layer semiconductor device, etc.) |
6 |
| 327/192 |
Negative resistance transistor (e.g., unijunction, etc.) |
9 |
| 327/193 |
Four or more layer device, (e.g., trigistor, etc.) |
10 |
| 327/186 |
Superconductive (e.g., cryogenic, etc.) |
49 |
| 327/190 |
With transformer or saturable core device |
40 |
| 327/191 |
Blocking oscillator |
12 |
| 327/194 |
Zener or capacitive diode |
5 |
| 327/231 |
Phase shift by less than period of input |
295 |
| 327/233 |
Correction to specific phase shift |
72 |
| 327/236 |
By phase comparator or detector |
75 |
| 327/235 |
Dependent on multiple fixed phase shifts |
32 |
| 327/234 |
Dependent on variable controlled phase shifts |
40 |
| 327/232 |
Dependent on frequency |
27 |
| 327/258 |
Multiple outputs |
142 |
| 327/259 |
Non-overlapping |
118 |
| 327/256 |
Phase inversion (i.e., 180 degrees between input and output) |
87 |
| 327/257 |
Multiple outputs |
51 |
| 327/260 |
Producing ac power control |
11 |
| 327/254 |
Quadrature related (i.e., 90 degrees) |
94 |
| 327/255 |
90 degrees between input and output |
35 |
| 327/237 |
Variable or adjustable |
193 |
| 327/240 |
Maintaining invariant amplitude |
8 |
| 327/239 |
Non-overlapping multiple outputs |
50 |
| 327/238 |
Quadrature related (i.e., 90 degrees) |
73 |
| 327/250 |
With active time delay element |
63 |
| 327/251 |
Having multiple outputs |
32 |
| 327/248 |
With adder |
44 |
| 327/249 |
Having multiple outputs |
2 |
| 327/241 |
With counter or shift register |
74 |
| 327/242 |
Having multiple outputs |
14 |
| 327/246 |
With differential amplifier |
54 |
| 327/247 |
Having multiple outputs |
22 |
| 327/243 |
With feedback |
43 |
| 327/245 |
Having multiple outputs |
22 |
| 327/244 |
With phase comparator or detector |
109 |
| 327/252 |
With passive time delay element |
23 |
| 327/253 |
Having multiple outputs |
8 |
| 327/178 |
Rectangular (e.g., clock, etc.) or pulse waveform amplitude control |
89 |
| 327/179 |
Gain |
36 |
| 327/180 |
Limiting, clipping, or clamping |
50 |
| 327/184 |
Rectangular (e.g., clock, etc.) or pulse waveform generating by conversion from input ac (e.g., sine, etc.) wave |
64 |
| 327/172 |
Rectangular (e.g., clock, etc.) or pulse waveform width control |
632 |
| 327/175 |
Duty cycle control |
604 |
| 327/176 |
Having digital device (e.g., logic gate, flip-flop, etc.) |
316 |
| 327/177 |
Having inductive device (e.g., transformer, etc.) |
15 |
| 327/174 |
Pulse broadening |
101 |
| 327/173 |
Pulse narrowing |
75 |
| 327/165 |
Regenerating or restoring rectangular (e.g., clock, etc.) or pulse waveform |
222 |
| 327/166 |
Having digital device (e.g., logic gate, flip-flop, etc.) |
190 |
| 327/168 |
Having inductive device (e.g., transformer, etc.) |
16 |
| 327/169 |
Having negative resistance device (e.g., tunnel diode, etc.) |
5 |
| 327/167 |
Having network providing particular mathematical function (e.g., integrator, etc.) |
26 |
| 327/170 |
Slope control of leading or trailing edge of rectangular (e.g., clock, etc.) or pulse waveform |
627 |
| 327/141 |
Synchronizing |
817 |
| 327/162 |
Having reference source |
136 |
| 327/163 |
By phase |
154 |
| 327/142 |
Reset (e.g., initializing, starting, stopping, etc.) |
346 |
| 327/143 |
Responsive to power supply |
773 |
| 327/144 |
Using multiple clocks |
324 |
| 327/145 |
Having different frequencies |
139 |
| 327/152 |
With choice between multiple delayed clocks |
152 |
| 327/151 |
With counter |
128 |
| 327/153 |
With delay means |
221 |
| 327/146 |
With feedback |
85 |
| 327/147 |
Phase lock loop |
516 |
| 327/148 |
With charge pump |
218 |
| 327/150 |
With digital element |
144 |
| 327/149 |
With variable delay means |
387 |
| 327/160 |
With counter |
367 |
| 327/161 |
With delay means |
688 |
| 327/155 |
With feedback |
169 |
| 327/156 |
Phase lock loop |
1610 |
| 327/157 |
With charge pump |
754 |
| 327/159 |
With digital element |
762 |
| 327/158 |
With variable delay means |
1066 |
| 327/154 |
With feedforward |
70 |
| 327/105 |
Synthesizer |
457 |
| 327/107 |
Having digital device (e.g., logic gate, flip-flop, etc.) |
278 |
| 327/106 |
Having stored waveform data (e.g., in rom, etc.) |
183 |
| 327/524 |
Specific identifiable device, circuit, or system |
82 |
| 327/525 |
Fusible link or intentional destruct circuit |
515 |
| 327/596 |
Including oscillatory or shock-excited circuit |
14 |
| 327/564 |
Integrated structure |
240 |
| 327/565 |
With specific layout or layout interconnections |
381 |
| 327/566 |
Having field-effect transistor device |
374 |
| 327/568 |
Negative resistance type |
29 |
| 327/570 |
Having "n"-shape curve on i-v plot (e.g., tunnel diode type, etc.) |
26 |
| 327/571 |
Having "s"-shape curve on i-v plot (e.g., pnpn diode type, etc.) |
5 |
| 327/572 |
Secondary emissive type |
2 |
| 327/573 |
Electron multiplier type |
10 |
| 327/569 |
Unijunction transistor |
4 |
| 327/560 |
Nonlinear amplifying circuit |
166 |
| 327/563 |
With differential amplifier |
485 |
| 327/561 |
With operational amplifier |
195 |
| 327/562 |
With field-effect transistor |
113 |
| 327/526 |
Redundant |
166 |
| 327/527 |
Superconductive (e.g., cryogenic, etc.) device |
146 |
| 327/529 |
Impact ionization |
4 |
| 327/528 |
Josephson junction |
103 |
| 327/567 |
Thin film |
28 |
| 327/591 |
Tube performs plural functions |
1 |
| 327/551 |
Unwanted signal suppression |
311 |
| 327/552 |
Active filter |
925 |
| 327/553 |
Adjustable |
376 |
| 327/555 |
Selective type signal filtering (e.g., from low pass to high pass, etc.) |
41 |
| 327/554 |
Switched capacitor filter |
246 |
| 327/557 |
Bandpass |
157 |
| 327/559 |
Highpass |
81 |
| 327/558 |
Lowpass |
266 |
| 327/556 |
Notch or bandreject |
69 |
| 327/574 |
Utilizing a three or more electrode solid-state device |
97 |
| 327/576 |
Complementary transistors |
100 |
| 327/575 |
Darlington connection |
106 |
| 327/581 |
Field-effect transistor |
423 |
| 327/582 |
Four or more layer device (e.g., silicon-controlled rectifier, etc.) |
59 |
| 327/579 |
Minority carrier storage |
90 |
| 327/578 |
Multiple collector transistor |
50 |
| 327/577 |
Multiple emitter transistor |
35 |
| 327/580 |
Transistor breakdown device (e.g., avalanche, zener, punch through, etc.) |
19 |
| 327/583 |
Utilizing two electrode solid-state device |
74 |
| 327/584 |
Breakdown diode (e.g., zener diode, avalanche diode, etc.) |
66 |
| 327/587 |
Bridge circuit |
46 |
| 327/586 |
Capacitive diode |
34 |
| 327/585 |
Minority carrier storage diode (e.g., enhancement diode, etc.) |
7 |
| 327/589 |
With bootstrap circuit |
306 |
| 327/588 |
With bridge circuit |
72 |
| 327/593 |
With distributed parameter circuit |
4 |
| 327/592 |
With oscillation prevention |
5 |
| 327/595 |
With particular connecting |
53 |
| 327/594 |
With particular coupling or decoupling |
53 |
| 327/590 |
With particular feedback |
27 |
| 327/597 |
With particular grid control |
4 |
| 327/598 |
With particular tube structure |
1 |
| 327/601 |
Gas tube |
2 |
| 327/602 |
With particular electrode arrangement |
3 |
| 327/599 |
Vacuum tube type |
4 |
| 327/600 |
Beam tube structure |
7 |
| 327/530 |
With specific source of supply or bias voltage |
725 |
| 327/531 |
Fluctuating or ac source with rectifier or filter |
68 |
| 327/533 |
With battery connected across rectifier |
7 |
| 327/532 |
With particular filter circuit |
37 |
| 327/534 |
Having particular substrate biasing |
674 |
| 327/535 |
Having stabilized bias or power supply level |
564 |
| 327/536 |
Charge pump details |
1225 |
| 327/537 |
With field-effect transistor |
778 |
| 327/545 |
Including signal protection or bias preservation |
267 |
| 327/546 |
With field-effect transistor |
358 |
| 327/544 |
Power conservation or pulse type |
540 |
| 327/538 |
Stabilized (e.g., compensated, regulated, maintained, etc.) |
1141 |
| 327/539 |
Using bandgap |
402 |
| 327/543 |
Using field-effect transistor |
855 |
| 327/542 |
With diverse type transistor devices |
165 |
| 327/540 |
With voltage source regulating |
735 |
| 327/541 |
With field-effect transistor |
832 |
| 327/549 |
With hum or interaction prevention |
5 |
| 327/548 |
With oscillator or interrupter |
32 |
| 327/550 |
With particular filament heating circuit |
15 |
| 327/547 |
With selectively or alternately dc or ac input |
14 |
| 327/334 |
Specific input to output function |
155 |
| 327/354 |
Absolute value |
29 |
| 327/335 |
By differentiating |
54 |
| 327/336 |
By integrating |
220 |
| 327/345 |
Having feedback |
91 |
| 327/337 |
Having switched capacitance |
251 |
| 327/344 |
Including rc circuit |
76 |
| 327/340 |
Single vacuum tube |
2 |
| 327/341 |
With compensation |
58 |
| 327/343 |
With rectifier circuit |
13 |
| 327/339 |
With summing or counting |
41 |
| 327/338 |
With thermionic tube |
1 |
| 327/342 |
With transducer |
34 |
| 327/355 |
Combining of plural signals |
298 |
| 327/356 |
Product |
262 |
| 327/359 |
Differential amplifier |
321 |
| 327/358 |
Having feedback |
41 |
| 327/357 |
Quadrant |
79 |
| 327/360 |
Quotient |
58 |
| 327/361 |
Summing |
175 |
| 327/346 |
Exponential |
71 |
| 327/349 |
Square function |
73 |
| 327/347 |
Square root |
29 |
| 327/348 |
Rms |
42 |
| 327/363 |
Having feedback |
46 |
| 327/350 |
Logarithmic |
189 |
| 327/351 |
With cascade network |
55 |
| 327/352 |
With summing |
59 |
| 327/353 |
With vacuum tube |
0 |
| 327/362 |
With compensation |
404 |
| 327/364 |
With vacuum tube |
3 |
| 327/1 |
Specific signal discriminating (e.g., comparing, selecting, etc.) without subsequent control |
85 |
| 327/50 |
By amplitude |
324 |
| 327/63 |
Comparison between plural varying inputs |
385 |
| 327/65 |
Differential input |
651 |
| 327/66 |
Current mirror |
185 |
| 327/67 |
Having feedback |
144 |
| 327/68 |
Input provides varying reference signal |
133 |
| 327/71 |
Three or more inputs |
57 |
| 327/64 |
With logic or bistable circuit |
79 |
| 327/69 |
With plural paths |
118 |
| 327/70 |
With single output |
71 |
| 327/90 |
Comparison between two characteristics of an input signal |
53 |
| 327/91 |
Including details of sampling or holding |
491 |
| 327/94 |
Sample and hold |
441 |
| 327/95 |
Having feedback |
131 |
| 327/96 |
With differential amplifier |
155 |
| 327/92 |
With bridge circuit |
35 |
| 327/93 |
With reference source |
65 |
| 327/74 |
Input signal compared to plural fixed references |
306 |
| 327/75 |
Three or more |
98 |
| 327/76 |
With logic or bistable circuit |
121 |
| 327/72 |
Input signal compared to reference derived therefrom |
366 |
| 327/73 |
Reference derived by feedback |
312 |
| 327/77 |
Input signal compared to single fixed reference |
667 |
| 327/87 |
Having feedback |
90 |
| 327/85 |
Inverting input or output |
28 |
| 327/82 |
Plural sources of input signal |
42 |
| 327/80 |
Reference determined by threshold of single circuit element |
106 |
| 327/81 |
With transistor |
116 |
| 327/78 |
Reference level crossover detecting |
299 |
| 327/79 |
Zero crossover |
96 |
| 327/83 |
Temperature compensation |
65 |
| 327/84 |
With bridge circuit |
7 |
| 327/89 |
With differential amplifier |
203 |
| 327/88 |
With source as reference |
41 |
| 327/86 |
With transformer |
6 |
| 327/58 |
Maximum or minimum amplitude |
366 |
| 327/61 |
By diode-capacitor network |
28 |
| 327/59 |
Employing input compared to output |
48 |
| 327/60 |
Employing input compared to reference derived therefrom |
56 |
| 327/62 |
Maximum and minimum amplitude |
109 |
| 327/97 |
With logic or bistable circuit |
100 |
| 327/51 |
With sensing amplifier |
571 |
| 327/52 |
Differential amplifier |
460 |
| 327/53 |
Current mirror |
216 |
| 327/54 |
Having feedback |
139 |
| 327/55 |
Cross-coupled |
325 |
| 327/56 |
With reference signal |
139 |
| 327/57 |
With latching type element (e.g., flip-flop, etc.) |
365 |
| 327/39 |
By frequency |
103 |
| 327/40 |
Comparison between plural inputs |
81 |
| 327/42 |
Fixed frequency reference signal |
97 |
| 327/43 |
With logic or bistable circuit |
97 |
| 327/41 |
With synchronous detection |
77 |
| 327/47 |
Frequency detection |
158 |
| 327/48 |
With counting |
91 |
| 327/49 |
With logic or bistable circuit |
106 |
| 327/44 |
With predetermined frequency selection |
81 |
| 327/46 |
Including plural frequency detection |
43 |
| 327/45 |
Including sampling or reference frequency |
54 |
| 327/2 |
By phase |
180 |
| 327/3 |
Comparison between plural inputs (e.g., phase angle indication, lead-lag discriminator, etc.) |
364 |
| 327/6 |
With electron space discharge |
3 |
| 327/5 |
With input derived from feedback |
84 |
| 327/12 |
With logic or bistable circuit |
378 |
| 327/7 |
With reference signal |
320 |
| 327/10 |
Uniform pulse waveform |
39 |
| 327/9 |
With sampling |
56 |
| 327/11 |
With transformer |
3 |
| 327/8 |
With varying frequency |
28 |
| 327/4 |
With transducer |
41 |
| 327/28 |
By polarity |
76 |
| 327/30 |
Opposite polarity |
14 |
| 327/29 |
Selection of a particular polarity |
18 |
| 327/18 |
By presence or absence pulse detection |
198 |
| 327/19 |
Arbitration |
59 |
| 327/20 |
Monitoring (e.g., failure detection, etc.) |
149 |
| 327/21 |
With variable frequency source |
21 |
| 327/23 |
By pulse coincidence |
90 |
| 327/24 |
Edge sensing |
64 |
| 327/26 |
With pulse width detecting |
70 |
| 327/27 |
With reference |
19 |
| 327/25 |
With uniform spacing |
14 |
| 327/22 |
By pulse noncoincidence |
20 |
| 327/31 |
By pulse width or spacing |
244 |
| 327/37 |
Comparison by threshold or reference |
92 |
| 327/34 |
Narrow pulse elimination or suppression |
130 |
| 327/36 |
Selection of a particular pulse width |
50 |
| 327/35 |
Separating by duration or gap (e.g., duty cycle, etc.) |
49 |
| 327/38 |
With plural paths |
30 |
| 327/33 |
With sampling |
39 |
| 327/32 |
With shock-excited circuit |
4 |
| 327/98 |
By separating composite signal |
86 |
| 327/13 |
By shape |
30 |
| 327/16 |
Having feedback |
6 |
| 327/14 |
Slope |
69 |
| 327/15 |
With direction (i.e., positive or negative) |
20 |
| 327/17 |
With reference signal |
14 |
| 327/99 |
Having selection between plural continuous waveforms |
304 |
| 327/518 |
With particular control |
45 |
| 327/523 |
Gaseous tube |
2 |
| 327/520 |
Plural active components included in a controlling circuit |
26 |
| 327/521 |
Connected in inverse parallel |
3 |
| 327/522 |
Gaseous tube |
3 |
| 327/519 |
Plurality of load devices |
16 |
