4. Telephonic communications
  5. With usage measurement
  6. Call charge metering or monitoring

Toshihiro Uota

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Data transmission system and method utilizing history...

Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate

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Digital gamma correction circuit and digital gamma...

Television – Image signal processing circuitry specific to television – Gray scale transformation
Reexamination Certificate

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Digital gamma correction circuit and digital gamma...

Television – Image signal processing circuitry specific to television – Gray scale transformation
Reexamination Certificate

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Dual channel ISDN terminal call identification and switching sys

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

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Profile ID: LFUS-PAI-P-677585

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