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H03G 1/00
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CONTROL OF AMPLIFICATION - Details of arrangements for controlling amplification |
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H03G 1/02
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Remote control of amplification, tone, or bandwidth |
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H03G 1/04
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Modifications of control circuit to reduce distortion caused by control |
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H03G 3/00
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Gain control in amplifiers or frequency changers |
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H03G 3/02
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Manually-operated control |
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H03G 3/04
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Manually-operated control in untuned amplifiers |
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H03G 3/06
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Manually-operated control in untuned amplifiers having discharge tubes |
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H03G 3/08
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Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback |
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H03G 3/10
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Manually-operated control in untuned amplifiers having semiconductor devices |
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H03G 3/12
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Manually-operated control in untuned amplifiers having semiconductor devices incorporating negative feedback |
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H03G 3/14
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Manually-operated control in frequency-selective amplifiers |
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H03G 3/16
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Manually-operated control in frequency-selective amplifiers having discharge tubes |
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H03G 3/18
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Manually-operated control in frequency-selective amplifiers having semiconductor devices |
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H03G 3/20
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Automatic control |
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H03G 3/22
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Automatic control in amplifiers having discharge tubes |
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H03G 3/24
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Control dependent upon ambient noise level or sound level |
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H03G 3/26
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Muting amplifier when no signal is present |
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H03G 3/28
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Muting amplifier when no signal is present in frequency-modulation receivers |
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H03G 3/30
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Automatic control in amplifiers having semiconductor devices |
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H03G 3/32
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Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level |
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H03G 3/34
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Muting amplifier when no signal is present |
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H03G 5/00
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Tone control or bandwidth control in amplifiers |
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H03G 5/02
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Manually-operated control |
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H03G 5/04
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Manually-operated control in untuned amplifiers |
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H03G 5/06
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Manually-operated control in untuned amplifiers having discharge tubes |
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H03G 5/08
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Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback |
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H03G 5/10
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Manually-operated control in untuned amplifiers having semiconductor devices |
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H03G 5/12
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Manually-operated control in untuned amplifiers having semiconductor devices incorporating negative feedback |
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H03G 5/14
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Manually-operated control in frequency-selective amplifiers |
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H03G 5/16
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Automatic control |
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H03G 5/18
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Automatic control in untuned amplifiers |
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H03G 5/20
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Automatic control in untuned amplifiers having discharge tubes |
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H03G 5/22
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Automatic control in untuned amplifiers having semiconductor devices |
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H03G 5/24
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Automatic control in frequency-selective amplifiers |
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H03G 5/26
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Automatic control in frequency-selective amplifiers having discharge tubes |
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H03G 5/28
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Automatic control in frequency-selective amplifiers having semiconductor devices |
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H03G 7/00
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Volume compression or expansion in amplifiers |
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H03G 7/02
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Volume compression or expansion in amplifiers having discharge tubes |
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H03G 7/04
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Volume compression or expansion in amplifiers having discharge tubes incorporating negative feedback |
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H03G 7/06
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Volume compression or expansion in amplifiers having semiconductor devices |
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H03G 7/08
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Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback |
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H03G 9/00
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Combinations of two or more types of control, e.g. gain control and tone control |
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H03G 9/02
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers |
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H03G 9/04
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes |
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H03G 9/06
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control |
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H03G 9/08
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control incorporating negative feedback |
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H03G 9/10
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for tone control and volume expansion or compression |
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H03G 9/12
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices |
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H03G 9/14
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for gain control and tone control |
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H03G 9/16
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for gain control and tone control incorporating negative feedback |
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H03G 9/18
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression |
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H03G 9/20
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Combinations of two or more types of control, e.g. gain control and tone control in frequency-selective amplifiers |
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H03G 9/22
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Combinations of two or more types of control, e.g. gain control and tone control in frequency-selective amplifiers having discharge tubes |
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H03G 9/24
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Combinations of two or more types of control, e.g. gain control and tone control in frequency-selective amplifiers having semiconductor devices |
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H03G 9/26
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifying stages as well as in frequency-selective amplifying stages |
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H03G 9/28
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifying stages as well as in frequency-selective amplifying stages all amplifying stages having discharge tubes |
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H03G 9/30
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Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifying stages as well as in frequency-selective amplifying stages all amplifying stages having semiconductor devices |
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H03G 11/00
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Limiting amplitude; Limiting rate of change of amplitude |
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H03G 11/02
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Limiting amplitude; Limiting rate of change of amplitude by means of diodes |
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H03G 11/04
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Limiting level dependent on strength of signal; Limiting level dependent on strength of carrier on which signal is modulated |
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H03G 11/06
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Limiting amplitude; Limiting rate of change of amplitude such limiters combined with discriminators |
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H03G 11/08
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Limiting rate of change of amplitude |
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H03G 99/00
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Subject matter not provided for in other groups of this subclass |
