Subclass |
| Title |
ClassTitle
|
| ===>
ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES
|
| | |
1 | ![[Patents]](../gifs/ps.gif) | BINAURAL AND STEREOPHONIC |
2 | ![[Patents]](../gifs/ps.gif) | . Broadcast or multiplex stereo |
3 | ![[Patents]](../gifs/ps.gif) | . . FM final modulation |
4 | ![[Patents]](../gifs/ps.gif) | . . . AM subcarrier |
5 | ![[Patents]](../gifs/ps.gif) | . . . . Four discrete channels |
6 | ![[Patents]](../gifs/ps.gif) | . . . . . Having transmitter |
7 | ![[Patents]](../gifs/ps.gif) | . . . . Switch-type detector or modulator |
8 | ![[Patents]](../gifs/ps.gif) | . . . . . Two diodes |
9 | ![[Patents]](../gifs/ps.gif) | . . . . . Four or more diodes |
10 | ![[Patents]](../gifs/ps.gif) | . . . . Channel separation control |
11 | ![[Patents]](../gifs/ps.gif) | . . . . Automatic switchover between mono and stereo modes |
12 | ![[Patents]](../gifs/ps.gif) | . . . . Stereo indicators (e.g., stereo presence) |
13 | ![[Patents]](../gifs/ps.gif) | . . . . Antinoise |
14 | ![[Patents]](../gifs/ps.gif) | . . . . Having transmitter |
15 | ![[Patents]](../gifs/ps.gif) | . . AM or both AM and angle final modulation |
16 | ![[Patents]](../gifs/ps.gif) | . . . Having transmitter |
17 | ![[Patents]](../gifs/ps.gif) | . Pseudo stereophonic |
18 | ![[Patents]](../gifs/ps.gif) | . . Pseudo quadrasonic |
19 | ![[Patents]](../gifs/ps.gif) | . Quadrasonic |
20 | ![[Patents]](../gifs/ps.gif) | . . Matrix |
21 | ![[Patents]](../gifs/ps.gif) | . . . 4-2-4 |
22 | ![[Patents]](../gifs/ps.gif) | . . . . Variable decoder |
23 | ![[Patents]](../gifs/ps.gif) | . . . . With encoder |
23.1 | ![[Patents]](../gifs/ps.gif) | . Hearing aid |
300 | ![[Patents]](../gifs/ps.gif) | . Stereo speaker arrangement |
301 | ![[Patents]](../gifs/ps.gif) | . . In furniture or clothing |
302 | ![[Patents]](../gifs/ps.gif) | . . In vehicle |
303 | ![[Patents]](../gifs/ps.gif) | . . Optimization |
304 | ![[Patents]](../gifs/ps.gif) | . . . Enclosure orientation |
305 | ![[Patents]](../gifs/ps.gif) | . . . Enclosure adaptation |
306 | ![[Patents]](../gifs/ps.gif) | . . With image presentation means |
307 | ![[Patents]](../gifs/ps.gif) | . . Surround (i.e., front plus rear or side) |
308 | ![[Patents]](../gifs/ps.gif) | . . In single baffle |
309 | ![[Patents]](../gifs/ps.gif) | . . Stereo earphone |
310 | ![[Patents]](../gifs/ps.gif) | . . . Virtual positioning |
311 | ![[Patents]](../gifs/ps.gif) | . . . Wireless or for use in diverse |
26 | ![[Patents]](../gifs/ps.gif) | . Stereo sound pickup device (microphone) |
27 | ![[Patents]](../gifs/ps.gif) | . Center channel |
28 | ![[Patents]](../gifs/ps.gif) | . Amplifier |
54 | ![[Patents]](../gifs/ps.gif) | HELIUM SPEECH |
55 | ![[Patents]](../gifs/ps.gif) | AUDIO TRANSDUCER PROTECTION CIRCUITRY |
56 | ![[Patents]](../gifs/ps.gif) | MONITORING OF SOUND |
57 | ![[Patents]](../gifs/ps.gif) | . Amplification control responsive to ambient sound |
58 | ![[Patents]](../gifs/ps.gif) | MONITORING/MEASURING OF AUDIO DEVICES |
59 | ![[Patents]](../gifs/ps.gif) | . Loudspeaker operation |
60 | ![[Patents]](../gifs/ps.gif) | . Testing of hearing aids |
61 | ![[Patents]](../gifs/ps.gif) | SOUND EFFECTS |
62 | ![[Patents]](../gifs/ps.gif) | . Tremelo or vibrato effects |
63 | ![[Patents]](../gifs/ps.gif) | . Reverberators |
64 | ![[Patents]](../gifs/ps.gif) | . . Mechanical (e.g., reverberation chamber) |
65 | ![[Patents]](../gifs/ps.gif) | . . . Helical spring |
66 | ![[Patents]](../gifs/ps.gif) | DEREVERBERATORS |
67 | ![[Patents]](../gifs/ps.gif) | STETHOSCOPES, ELECTRICAL |
312 | ![[Patents]](../gifs/ps.gif) | HEARING AIDS, ELECTRICAL |
313 | ![[Patents]](../gifs/ps.gif) | . Directional |
314 | ![[Patents]](../gifs/ps.gif) | . Programming interface circuitry |
315 | ![[Patents]](../gifs/ps.gif) | . Remote control, wireless, or alarm |
316 | ![[Patents]](../gifs/ps.gif) | . Frequency transposition |
317 | ![[Patents]](../gifs/ps.gif) | . Noise compensation circuit |
318 | ![[Patents]](../gifs/ps.gif) | . . Feedback suppression |
319 | ![[Patents]](../gifs/ps.gif) | . With vacuum tube amplifier |
320 | ![[Patents]](../gifs/ps.gif) | . Spectral control |
321 | ![[Patents]](../gifs/ps.gif) | . Wideband gain control |
322 | ![[Patents]](../gifs/ps.gif) | . Specified casing or housing |
323 | ![[Patents]](../gifs/ps.gif) | . . Power supply or programming interface terminals |
324 | ![[Patents]](../gifs/ps.gif) | . . Component mounting |
325 | ![[Patents]](../gifs/ps.gif) | . . Cerumen protection |
326 | ![[Patents]](../gifs/ps.gif) | . . Non-air-conducted sound delivery |
327 | ![[Patents]](../gifs/ps.gif) | . . Spectacle |
328 | ![[Patents]](../gifs/ps.gif) | . . Ear insert |
329 | ![[Patents]](../gifs/ps.gif) | . . . Device for manipulation |
330 | ![[Patents]](../gifs/ps.gif) | . . Hook over ear |
331 | ![[Patents]](../gifs/ps.gif) | . . Inductive pickup |
70 | ![[Patents]](../gifs/ps.gif) | ARTIFICIAL LARYNX, ELECTRICAL |
71.1 | ![[Patents]](../gifs/ps.gif) | ACOUSTICAL NOISE OR SOUND CANCELLATION |
71.2 | ![[Patents]](../gifs/ps.gif) | . Acoustic, nonairborne vibration sensing or counterwave emission |
71.3 | ![[Patents]](../gifs/ps.gif) | . From appliance |
71.4 | ![[Patents]](../gifs/ps.gif) | . Within cabin or compartment of vehicle |
71.5 | ![[Patents]](../gifs/ps.gif) | . Within duct |
71.6 | ![[Patents]](../gifs/ps.gif) | . Adjacent ear |
71.7 | ![[Patents]](../gifs/ps.gif) | . Particular transducer or enclosure structure |
71.8 | ![[Patents]](../gifs/ps.gif) | . Counterwave generation control path |
71.9 | ![[Patents]](../gifs/ps.gif) | . . Nonacoustically derived reference signal |
71.11 | ![[Patents]](../gifs/ps.gif) | . . Adaptive filter topology |
71.12 | ![[Patents]](../gifs/ps.gif) | . . Algorithm or formula (e.g., LMS, Filtered-X, etc.) |
71.13 | ![[Patents]](../gifs/ps.gif) | . . Analog or nonadaptive |
71.14 | ![[Patents]](../gifs/ps.gif) | . . Tonal noise or particular frequency or band |
72 | ![[Patents]](../gifs/ps.gif) | HEARING PROTECTORS, ELECTRICAL |
73.1 | ![[Patents]](../gifs/ps.gif) | SOUND OR NOISE MASKING |
74 | ![[Patents]](../gifs/ps.gif) | HEADPHONE CIRCUITS |
75 | ![[Patents]](../gifs/ps.gif) | MEGAPHONES |
76 | ![[Patents]](../gifs/ps.gif) | LECTERNS |
77 | ![[Patents]](../gifs/ps.gif) | ONE-WAY AUDIO SIGNAL PROGRAM DISTRIBUTION |
78 | ![[Patents]](../gifs/ps.gif) | . Drive-in |
79 | ![[Patents]](../gifs/ps.gif) | . Near field |
80 | ![[Patents]](../gifs/ps.gif) | . Multiple channel |
81 | ![[Patents]](../gifs/ps.gif) | . . With switching |
82 | ![[Patents]](../gifs/ps.gif) | . Public address system |
83 | ![[Patents]](../gifs/ps.gif) | . . Feedback suppression |
84 | ![[Patents]](../gifs/ps.gif) | . . Spare amplifier substitution |
85 | ![[Patents]](../gifs/ps.gif) | . . Speaker or channel switching |
86 | ![[Patents]](../gifs/ps.gif) | VEHICLE |
87 | ![[Patents]](../gifs/ps.gif) | HAVING NON-ELECTRICAL FEATURE (E.G., MOUNTING) |
89 | ![[Patents]](../gifs/ps.gif) | . . Loudspeakers driven in given phase relationship |
332 | ![[Patents]](../gifs/ps.gif) | . And loudspeaker |
333 | ![[Patents]](../gifs/ps.gif) | . . With furniture, clothing, or image presentation means |
334 | ![[Patents]](../gifs/ps.gif) | . . Portable or for use in diverse environment |
335 | ![[Patents]](../gifs/ps.gif) | . . Plural diaphragms, compartments, or housings |
336 | ![[Patents]](../gifs/ps.gif) | . . Curved or angled housing |
91 | ![[Patents]](../gifs/ps.gif) | . Having microphone |
92 | ![[Patents]](../gifs/ps.gif) | DIRECTIVE CIRCUITS FOR MICROPHONES |
93 | ![[Patents]](../gifs/ps.gif) | FEEDBACK SUPPRESSION |
94.1 | ![[Patents]](../gifs/ps.gif) | NOISE OR DISTORTION SUPPRESSION |
94.2 | ![[Patents]](../gifs/ps.gif) | . Spectral adjustment |
94.3 | ![[Patents]](../gifs/ps.gif) | . . In multiple frequency bands |
94.4 | ![[Patents]](../gifs/ps.gif) | . Interpolation |
94.5 | ![[Patents]](../gifs/ps.gif) | . Soft switching, muting, or noise gating |
94.6 | ![[Patents]](../gifs/ps.gif) | . Hum or ground loop |
94.7 | ![[Patents]](../gifs/ps.gif) | . Using signal channel and noise channel |
94.8 | ![[Patents]](../gifs/ps.gif) | . Peak limiting or pulsive noise compensation |
94.9 | ![[Patents]](../gifs/ps.gif) | . Feedforward circuitry for transducer compensation |
95 | ![[Patents]](../gifs/ps.gif) | MICROPHONE FEEDBACK |
96 | ![[Patents]](../gifs/ps.gif) | LOUDSPEAKER FEEDBACK |
97 | ![[Patents]](../gifs/ps.gif) | INCLUDING PHASE CONTROL |
98 | ![[Patents]](../gifs/ps.gif) | INCLUDING FREQUENCY CONTROL |
99 | ![[Patents]](../gifs/ps.gif) | . Having crossover filter |
100 | ![[Patents]](../gifs/ps.gif) | . . With active device |
101 | ![[Patents]](../gifs/ps.gif) | . Automatic tone control |
102 | ![[Patents]](../gifs/ps.gif) | . . With amplitude control |
103 | ![[Patents]](../gifs/ps.gif) | . Having automatic equalizer circuit |
104 | ![[Patents]](../gifs/ps.gif) | INCLUDING AMPLITUDE OR VOLUME CONTROL |
105 | ![[Patents]](../gifs/ps.gif) | . Remote |
106 | ![[Patents]](../gifs/ps.gif) | . With amplitude compression/expansion |
107 | ![[Patents]](../gifs/ps.gif) | . Automatic |
108 | ![[Patents]](../gifs/ps.gif) | . . Including feedback |
109 | ![[Patents]](../gifs/ps.gif) | . With manual volume control |
110 | ![[Patents]](../gifs/ps.gif) | VOICE CONTROLLED |
111 | ![[Patents]](../gifs/ps.gif) | CIRCUITRY COMBINED WITH SPECIFIC TYPE MICROPHONE OR LOUDSPEAKER |
112 | ![[Patents]](../gifs/ps.gif) | . With carbon microphone |
113 | ![[Patents]](../gifs/ps.gif) | . With electrostatic microphone |
114 | ![[Patents]](../gifs/ps.gif) | . With piezoelectric microphone |
115 | ![[Patents]](../gifs/ps.gif) | . With magnetic microphone |
116 | ![[Patents]](../gifs/ps.gif) | . With electrostatic loudspeaker |
117 | ![[Patents]](../gifs/ps.gif) | . With magnetic loudspeaker |
118 | ![[Patents]](../gifs/ps.gif) | WITH MUSICAL INSTRUMENT |
119 | ![[Patents]](../gifs/ps.gif) | WITH MIXER |
120 | ![[Patents]](../gifs/ps.gif) | WITH AMPLIFIER |
121 | ![[Patents]](../gifs/ps.gif) | . Feedback |
122 | ![[Patents]](../gifs/ps.gif) | HAVING MICROPHONE |
123 | ![[Patents]](../gifs/ps.gif) | SWITCHING |
150 | ![[Patents]](../gifs/ps.gif) | ELECTRO-ACOUSTIC AUDIO TRANSDUCER |
151 | ![[Patents]](../gifs/ps.gif) | . Body contact wave transfer (e.g., bone conduction earphone, larynx microphone) |
152 | ![[Patents]](../gifs/ps.gif) | . Driven diverse static structure (e.g., wall, sounding board) |
337 | ![[Patents]](../gifs/ps.gif) | . Having acoustic wave modifying structure |
338 | ![[Patents]](../gifs/ps.gif) | . . With tubular waveguide or resonant element |
339 | ![[Patents]](../gifs/ps.gif) | . . Sound intensifying or spreading element |
340 | ![[Patents]](../gifs/ps.gif) | . . . Horn |
341 | ![[Patents]](../gifs/ps.gif) | . . . . Inverted, folded, or curled |
342 | ![[Patents]](../gifs/ps.gif) | . . . . Plural horns or diaphragms |
343 | ![[Patents]](../gifs/ps.gif) | . . . . Phase plug |
344 | ![[Patents]](../gifs/ps.gif) | . . . Mouthpiece |
345 | ![[Patents]](../gifs/ps.gif) | . . Acoustic enclosure |
346 | ![[Patents]](../gifs/ps.gif) | . . . Acoustic resistance |
347 | ![[Patents]](../gifs/ps.gif) | . . . . On front side of diaphragm |
348 | ![[Patents]](../gifs/ps.gif) | . . . . On rear side of diaphragm |
349 | ![[Patents]](../gifs/ps.gif) | . . . Bass reflex (e.g., rear wave) |
350 | ![[Patents]](../gifs/ps.gif) | . . . Front wave |
351 | ![[Patents]](../gifs/ps.gif) | . . . Plural chambers |
352 | ![[Patents]](../gifs/ps.gif) | . . . Having internal wave reflecting means |
353 | ![[Patents]](../gifs/ps.gif) | . . . Acoustic damping or attenuating resonator |
354 | ![[Patents]](../gifs/ps.gif) | . . Absorbing or attenuating element |
160 | ![[Patents]](../gifs/ps.gif) | . . Reflecting element |
161 | ![[Patents]](../gifs/ps.gif) | . With mechanical amplifier arrangement |
162 | ![[Patents]](../gifs/ps.gif) | . Detail of mechanical vibration coupling to transducer (e.g., tuned vibrating element) |
163 | ![[Patents]](../gifs/ps.gif) | . Having bi-directional transducer |
164 | ![[Patents]](../gifs/ps.gif) | . Thermal response to, or generation of, sound vibration |
165 | ![[Patents]](../gifs/ps.gif) | . By modifying fluid flow |
166 | ![[Patents]](../gifs/ps.gif) | . Having a fluid as a conducting element |
167 | ![[Patents]](../gifs/ps.gif) | . . Ionized gap, spark, or flame |
355 | ![[Patents]](../gifs/ps.gif) | . Housed microphone |
356 | ![[Patents]](../gifs/ps.gif) | . . Directional |
357 | ![[Patents]](../gifs/ps.gif) | . . . With plural sound ports (e.g., pressure gradient) |
358 | ![[Patents]](../gifs/ps.gif) | . . . . Plural or variable characteristics |
359 | ![[Patents]](../gifs/ps.gif) | . . Windscreen |
360 | ![[Patents]](../gifs/ps.gif) | . . Cavity |
361 | ![[Patents]](../gifs/ps.gif) | . . Mounting or support |
362 | ![[Patents]](../gifs/ps.gif) | . . . Boom (other than on headset) |
363 | ![[Patents]](../gifs/ps.gif) | . . . Stand or gooseneck |
364 | ![[Patents]](../gifs/ps.gif) | . . . On body or clothing |
365 | ![[Patents]](../gifs/ps.gif) | . . . In electronic apparatus or vehicle |
366 | ![[Patents]](../gifs/ps.gif) | . . . Detachable from support |
367 | ![[Patents]](../gifs/ps.gif) | . . . In headgear |
368 | ![[Patents]](../gifs/ps.gif) | . . . On shock absorbing support |
369 | ![[Patents]](../gifs/ps.gif) | . Microphone capsule only |
170 | ![[Patents]](../gifs/ps.gif) | . . Compound |
171 | ![[Patents]](../gifs/ps.gif) | . . Micromagnetic |
172 | ![[Patents]](../gifs/ps.gif) | . . Light modifying |
173 | ![[Patents]](../gifs/ps.gif) | . . Piezoelectric or ferroelectric |
174 | ![[Patents]](../gifs/ps.gif) | . . Capacitive |
175 | ![[Patents]](../gifs/ps.gif) | . . Semiconductor junction microphone |
176 | ![[Patents]](../gifs/ps.gif) | . . Conductive diaphragm (e.g., reed, ribbon) |
177 | ![[Patents]](../gifs/ps.gif) | . . Dynamic (e.g., magnetic) |
178 | ![[Patents]](../gifs/ps.gif) | . . Vibrating electrical contract |
179 | ![[Patents]](../gifs/ps.gif) | . . Resistive |
180 | ![[Patents]](../gifs/ps.gif) | . . . Granular or carbon |
181 | ![[Patents]](../gifs/ps.gif) | . . . . Differential |
182 | ![[Patents]](../gifs/ps.gif) | . Plural or compound reproducers |
370 | ![[Patents]](../gifs/ps.gif) | . . Headphone |
371 | ![[Patents]](../gifs/ps.gif) | . . . Particular cup |
372 | ![[Patents]](../gifs/ps.gif) | . . . . Having mechanical or acoustic sound attenuation |
373 | ![[Patents]](../gifs/ps.gif) | . . . . Openable to ambient |
374 | ![[Patents]](../gifs/ps.gif) | . . . Particular support structure |
375 | ![[Patents]](../gifs/ps.gif) | . . . . And microphone |
376 | ![[Patents]](../gifs/ps.gif) | . . . . Headgear |
377 | ![[Patents]](../gifs/ps.gif) | . . . . Plural bands |
378 | ![[Patents]](../gifs/ps.gif) | . . . . Single band |
379 | ![[Patents]](../gifs/ps.gif) | . . . . adjustable |
380 | ![[Patents]](../gifs/ps.gif) | . . . . Ear insert or bone conduction |
381 | ![[Patents]](../gifs/ps.gif) | . . . . Hook over ear or spectacle |
382 | ![[Patents]](../gifs/ps.gif) | . . . . Sound conducting tube |
383 | ![[Patents]](../gifs/ps.gif) | . . . . Collapsible |
384 | ![[Patents]](../gifs/ps.gif) | . . . Electrical hardware feature |
184 | ![[Patents]](../gifs/ps.gif) | . . Different types of diaphragms |
185 | ![[Patents]](../gifs/ps.gif) | . . Having common voice coil |
186 | ![[Patents]](../gifs/ps.gif) | . . Plural diaphragms |
385 | ![[Patents]](../gifs/ps.gif) | . Having body supported structure other than on head |
386 | ![[Patents]](../gifs/ps.gif) | . Mounting or support feature of housed loudspeaker |
387 | ![[Patents]](../gifs/ps.gif) | . . Directional, directible, or movable |
388 | ![[Patents]](../gifs/ps.gif) | . . With furniture, clothing, or image display |
389 | ![[Patents]](../gifs/ps.gif) | . . In vehicle |
390 | ![[Patents]](../gifs/ps.gif) | . . Boom or support arm |
391 | ![[Patents]](../gifs/ps.gif) | . . Grille |
392 | ![[Patents]](../gifs/ps.gif) | . . Resilient |
393 | ![[Patents]](../gifs/ps.gif) | . . electrical insulation feature |
394 | ![[Patents]](../gifs/ps.gif) | . . Electrical hardware |
395 | ![[Patents]](../gifs/ps.gif) | . . Mechanical detail |
189 | ![[Patents]](../gifs/ps.gif) | . Having protective or sheilding feature |
190 | ![[Patents]](../gifs/ps.gif) | . Electrostrictive, magnetostrictive, or piezoelectric |
191 | ![[Patents]](../gifs/ps.gif) | . Having electrostatic element (e.g., electret, vibrating plate) |
396 | ![[Patents]](../gifs/ps.gif) | . Electromagnetic (e.g., dyynamic) |
397 | ![[Patents]](../gifs/ps.gif) | . . Cooling feature |
398 | ![[Patents]](../gifs/ps.gif) | . . Having diaphragm support feature |
399 | ![[Patents]](../gifs/ps.gif) | . . Conductive diaphragm (e.g., ribbon) |
400 | ![[Patents]](../gifs/ps.gif) | . . Movable voice coil |
401 | ![[Patents]](../gifs/ps.gif) | . . . Multiple voice coils |
402 | ![[Patents]](../gifs/ps.gif) | . . . . For different frequencies |
403 | ![[Patents]](../gifs/ps.gif) | . . . Centering from outside bobbin or diaphragm |
404 | ![[Patents]](../gifs/ps.gif) | . . . . Spider |
405 | ![[Patents]](../gifs/ps.gif) | . . . Centering from within bobbin or diaphragm |
406 | ![[Patents]](../gifs/ps.gif) | . . . Field coil |
407 | ![[Patents]](../gifs/ps.gif) | . . . Particular bobbin structure |
408 | ![[Patents]](../gifs/ps.gif) | . . . Pattern |
409 | ![[Patents]](../gifs/ps.gif) | . . . Wiring structure |
410 | ![[Patents]](../gifs/ps.gif) | . . . Coil coating, winding layer structure, or wire |
411 | ![[Patents]](../gifs/ps.gif) | . . Including adjustment mechanism |
412 | ![[Patents]](../gifs/ps.gif) | . . Magnetic circuit |
413 | ![[Patents]](../gifs/ps.gif) | . . . Having damping |
414 | ![[Patents]](../gifs/ps.gif) | . . . Flux modifying means |
415 | ![[Patents]](../gifs/ps.gif) | . . . Magnetic liquid |
416 | ![[Patents]](../gifs/ps.gif) | . . . Inverted (e.g., within cone) |
417 | ![[Patents]](../gifs/ps.gif) | . . . Armature diaphragm |
418 | ![[Patents]](../gifs/ps.gif) | . . . Armature linked to diaphragm |
419 | ![[Patents]](../gifs/ps.gif) | . . . Not having central magnetic portion |
420 | ![[Patents]](../gifs/ps.gif) | . . . Having central magnetic portion |
421 | ![[Patents]](../gifs/ps.gif) | . . . . Plural magnets |
422 | ![[Patents]](../gifs/ps.gif) | . . . . . Like poles adjacent |
423 | ![[Patents]](../gifs/ps.gif) | . . Specified diaphragm shape or structure |
424 | ![[Patents]](../gifs/ps.gif) | . . . Plural portions or sections |
425 | ![[Patents]](../gifs/ps.gif) | . . . . Honeycomb |
426 | ![[Patents]](../gifs/ps.gif) | . . . Critically defined material or lamination |
427 | ![[Patents]](../gifs/ps.gif) | . . . . Metal |
428 | ![[Patents]](../gifs/ps.gif) | . . . . Fibrous |
429 | ![[Patents]](../gifs/ps.gif) | . . . Apertures in surface |
430 | ![[Patents]](../gifs/ps.gif) | . . . Dome or round |
431 | ![[Patents]](../gifs/ps.gif) | . . . Flat |
432 | ![[Patents]](../gifs/ps.gif) | . . . Conical |
433 | ![[Patents]](../gifs/ps.gif) | . . Basket detail |
124 | ![[Patents]](../gifs/ps.gif) | MISCELLANEOUS |
| | ****************************** |
| | FOREIGN ART COLLECTIONS |
| | ****************************** |
| | Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collection listed below. These collections contain ONLY foreign patents or nonpatent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived. |
FOR 100 | | AUDIO BANDWIDTH COMPRESSION OR EXPANSION (381/29) |
FOR 101 | | . With content reduction encoding (381/30) |
FOR 102 | | . Delay line (381/33) |
FOR 103 | | TIME COMPRESSION OR EXPANSION (E.G., RUN LENGTH CODING) (381/34) |
FOR 104 | | . With content reduction encoding (381/35) |
FOR 105 | | SPEECH ANALYSIS AND SYNTHESIS COMBINED (381/36) |
FOR 106 | | . Using frequency (381/37) |
FOR 107 | | . . Pitch (381/38) |
FOR 108 | | . . Formants (381/39) |
FOR 109 | | . Using time (381/40) |
FOR 110 | | SPEECH ANALYSIS (E.G., PHONEME RECOGNITION) (381/41) |
FOR 111 | | . Voice recognition (381/42) |
FOR 112 | | . Word recognition (381/43) |
FOR 113 | | . . Phonetic typewriters (381/44) |
FOR 114 | | . . Frequency domain (381/45) |
FOR 115 | | . Detection of speech in noise (381/46) |
FOR 116 | | . Signal to noise ratio enhancement (381/47) |
FOR 117 | | . Speech parameter display (381/48) |
FOR 118 | | . Speech pitch fundamental frequency (381/49) |
FOR 119 | | . Speech formant frequencies (381/50) |
FOR 120 | | SPEECH SYNTHESIS (381/51) |
FOR 121 | | . Speech from printed matter (381/52) |
FOR 122 | | . Vocal tract model (381/53) |
FOR 123 | | ACOUSTICAL NOISE OR SOUND CANCELLATION (381/71) |
FOR 124 | | NOISE SUPPRESSION (381/94) |
| | BINAURAL AND STEREOPHONIC |
FOR 125 | | . Speaker arrangement (381/24) |
FOR 126 | | . . Earphone (381/25) |
FOR 127 | | HEARING AIDS, ELECTRICAL (381/68) |
FOR 128 | | . Directional (381/68.1) |
FOR 129 | | . Frequency control (381/68.2) |
FOR 130 | | . Bone conduction (381/68.3) |
FOR 131 | | . Gain Control (381/68.3) |
FOR 132 | | . Spectacle (381/68.5) |
FOR 133 | | . Ear insert (381/68.6) |
FOR 134 | | . Hook over ear (381/68.7) |
FOR 135 | | . Specified casing or housing (381/69) |
FOR 136 | | . . Having vacuum tube amplifier (381/69.1) |
FOR 137 | | . . Having battery (381/69.2) |
FOR 138 | | . Having enclosure or housing (381/138) |
FOR 139 | | . . With loudspeaker (e.g., baffle, spatial orientation, etc.) (381/90) |
FOR 140 | | . With acoustic wave modifying structure (381/153) |
FOR 141 | | . . Including sound conducting tube (381/154) |
FOR 142 | | . . Directional (381/155) |
FOR 143 | | . . Sound intensifying or spreading element (381/156) |
FOR 144 | | . . . Mouthpiece (381/157) |
FOR 145 | | . . Absorbing or attenuating element (e.g., baffle, obstruction, damping) (381/158) |
FOR 146 | | . . Enclosure or resonant cavity (381/159) |
FOR 147 | | . Microphone (381/168) |
FOR 148 | | . . With mounting or support feature (381/169) |
FOR 149 | | . . Headphone (381/183) |
FOR 150 | | . Having body supported structure (e.g., earphone) (381/187) |
FOR 151 | | . With mounting or support feature (381/188) |
FOR 152 | | . Electromagnetic (e.g., dynamic) (381/192) |
FOR 153 | | . . Having feature of edge-supported diaphragm (381/193) |
FOR 154 | | . . Movable voice coil (381/194) |
FOR 155 | | . . . Multiple (e.g., double) (381/195) |
FOR 156 | | . . . Pattern (381/196) |
FOR 157 | | . . . Centering (381/197) |
FOR 158 | | . . Including adjustment mechanism (381/198) |
FOR 159 | | . . Magnetic circuit or core structure (381/199) |
FOR 160 | | . . . Armature (381/200) |
FOR 161 | | . . . Magnetic configuration (e.g., tubular or U-shaped) (381/201) |
FOR 162 | | . . Specified diaphragm shape or structure (381/202) |
FOR 163 | | . . . Flat (381/203) |
FOR 164 | | . . . Conical (381/204) |
FOR 165 | | . Electro-acoustical transducer mounting or support (381/205) |