4. Pulse or digital communications
  5. Repeaters
  6. Testing

Richard Y. Hsia

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Calling line identification adjunct for use with a communication

Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent

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Communication system having voice and data capability

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent

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Display-based interface for a communication device

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate

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Wireless test mode for a cordless telephone

Pulse or digital communications – Repeaters – Testing
Patent

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Profile ID: LFUS-PAI-P-936736

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