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Universal TV interface for switch of broadcast video distributio

Telecommunications – Interference signal transmission
Patent

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Universal vehicle based garage door opener control system...

Telecommunications – Radiotelephone system – Programming control
Reexamination Certificate

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Universal wideband switchless channel selector

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

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Universal wireless communication system, a transmission protocol

Telecommunications – Transmitter and receiver at separate stations – Distortion – noise – or other interference prevention,...
Patent

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Universal wireless telephone to modem adapter

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

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Unlicensed wireless communications base station to...

Telecommunications – Radiotelephone system – Out-of-range indication
Reexamination Certificate

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Unlocking attenuator for automatic tuning receiver

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent

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Unmanned lighter-than-air safe termination and recovery methods

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate

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Unsolicited wireless content delivery and billing apparatus...

Telecommunications – Radiotelephone system – Usage measurement
Reexamination Certificate

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Unsolicited wireless content delivery and billing apparatus...

Telecommunications – Radiotelephone system – Usage measurement
Reexamination Certificate

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Unstructured supplementary service data from a home location reg

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent

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Unsuccessful call alert

Telecommunications – Radiotelephone system – Auxiliary data signaling
Reexamination Certificate

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Unsuitable cell exclusion in wireless communication systems

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate

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Untethered microphone and base unit

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent

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Up converted home base station

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent

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Up converter mixer linearization improvement

Telecommunications – Transmitter – Frequency conversion
Reexamination Certificate

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Up converter of base station transmitter in wireless...

Telecommunications – Transmitter – With feedback of modulated output signal
Reexamination Certificate

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Up link macro diversity method and apparatus in a digital mobile

Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Patent

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Up-conversion homodyne receiver for cable television converter w

Telecommunications – Wireless distribution system
Patent

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Up-conversion mixing system with high carrier suppression

Telecommunications – Transmitter – Frequency conversion
Reexamination Certificate

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