LandOfFree - US Patents - Listing for Telecommunications

Telecommunications – Receiver or analog modulated signal frequency converter – With particular receiver circuit

Hairpin band pass filter and related frequency down converter

Telecommunications – Carrier wave repeater or relay system – Two separate way transmission

Half duplex communication system having quick channel assignment

Telecommunications – Transmitter and receiver at same station – With a common signal processing stage

Half duplex radio transceiver with low IF receiver

Telecommunications – Transmitter and receiver at same station – With frequency stabilization

Half duplex RF transceiver

Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention

Half duplex RF transceiver having low transmit path signal loss

Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention

Half-duplex radios for indicating signal transmissions

Telecommunications – Radiotelephone system – Programming control

Half-duplex wireless audio communication system

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

Hand free device commonly shared by multiple communication...

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

Hand held apparatus and flip device thereof

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

Hand held mobile communication device

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

Hand held mobile communication device and method for...

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

Hand held mobile phone with integral internal printer with...

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

Hand held mobile phone with integral internal printer with...

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

Hand held telecommunications and data entry device

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

Hand held telephone set and audio processing method

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

Hand held telephone set with separable keyboard

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

Hand over control method, base station controller and mobile...

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

Hand over method for dual band/dual mode mobile...

Telecommunications – Radiotelephone system – Message storage or retrieval

Hand-ear user interface for hand-held device