Description
CONTROL OF AMPLIFICATION (impedance networks, e.g. attenuators, H03H; control of transmission in lines H04B 3/04)
H03G
Technology
Stats
- 6,792 US PATENTS IN FORCE
- 1,159 US APPLICATIONS PENDING
- 1,907 Total Patent Owners
- 15,617 TOTAL INVENTORS
Subclasses
| Subclass | Title |
|---|---|
| 1/00 | Details of arrangements for controlling amplification |
| 1/02 | Details of arrangements for controlling amplification Remote control of amplification, tone, or bandwidth (remote control in general G05, G08; combined with remote tuning or selection of resonant circuits H03J) |
| 1/04 | Details of arrangements for controlling amplification Modifications of control circuit to reduce distortion caused by control (modifications to reduce influence of variations of internal impedance of amplifying elements caused by control H03F 1/08) |
| 3/00 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) |
| 3/02 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Manually-operated control |
| 3/04 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Manually-operated control in untuned amplifiers |
| 3/06 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Manually-operated control in untuned amplifiers having discharge tubes |
| 3/08 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback |
| 3/10 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Manually-operated control in untuned amplifiers having semiconductor devices |
| 3/12 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Manually-operated control in untuned amplifiers having semiconductor devices incorporating negative feedback |
| 3/14 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Manually-operated control in frequency-selective amplifiers |
| 3/16 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Manually-operated control in frequency-selective amplifiers having discharge tubes |
| 3/18 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Manually-operated control in frequency-selective amplifiers having semiconductor devices |
| 3/20 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Automatic control (combined with volume compression or expansion H03G 7/00) |
| 3/22 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Automatic control (combined with volume compression or expansion H03G 7/00) in amplifiers having discharge tubes |
| 3/24 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Automatic control (combined with volume compression or expansion H03G 7/00) in amplifiers having discharge tubes Control dependent upon ambient noise level or sound level |
| 3/26 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Automatic control (combined with volume compression or expansion H03G 7/00) in amplifiers having discharge tubes Muting amplifier when no signal is present |
| 3/28 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Automatic control (combined with volume compression or expansion H03G 7/00) in amplifiers having discharge tubes Muting amplifier when no signal is present in frequency-modulation receivers |
| 3/30 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Automatic control (combined with volume compression or expansion H03G 7/00) in amplifiers having semiconductor devices |
| 3/32 | Gain control in amplifiers or frequency changers (gated amplifiers H03F 3/72; peculiar to television receivers H04N) Automatic control (combined with volume compression or expansion H03G 7/00) in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level |
Recent Patents
Not Available
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0117,185 | USING AUDIO SEPARATION AND CLASSIFICATION TO ENHANCE AUDIO IN VIDEOS | Oct 02, 24 | Apr 10, 25 | Google LLC |
| 2025/0118,324 | Pseudo Real-time Content-Aware Auditory Cleansing | Oct 09, 23 | Apr 10, 25 | Antares Audio Strategies, LLC |
| 2025/0118,533 | RADIO FREQUENCY POWER GENERATOR HAVING MULTIPLE OUTPUT PORTS | Dec 16, 24 | Apr 10, 25 | Not available |
| 2025/0112,606 | PROGRAMMABLE GAIN TRANSIMPEDANCE AMPLIFIER HAVING A RESISTIVE T-NETWORK FEEDBACK ARCHITECTURE AND METHOD THEREOF | Sep 28, 23 | Apr 03, 25 | BAE Systems Information and Electronic Systems Integration Inc. |
| 2025/0113,144 | METHOD FOR MANAGING THE LOW FREQUENCIES OF A LOUDSPEAKER AND DEVICE FOR IMPLEMENTING SAID METHOD | Jan 13, 23 | Apr 03, 25 | Not available |
Top Owners in This Class
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Applications Filed in This Class - By Year
Patents Issued To Date - By Filing Year
Average Time to Issuance
- 29 Months (last 2 years Issuances)
- 29 Months (last 5 years Issuances)