4. Telephonic communications
  5. Supervisory or control line signaling
  6. Using line or loop condition detection

Edward J. W. Whittaker

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Fast low drop out (LDO) PFET regulator circuit

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Reexamination Certificate

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Integrated implementation of a collector boost scheme and...

Amplifiers – With semiconductor amplifying device
Reexamination Certificate

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Low voltage wide ratio current mirror

Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate

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Power level controlling of first amplification stage for an...

Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate

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Shunt regulator for hands-free telephone

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal
Patent

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Profile ID: LFUS-PAI-P-1230057

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