Harris Corporation

Thomas Philbin

Terence W O'Brien

David Hinterberger

Lloyd Palum

David March

Nicholas J Stocks

Nicholas Stocks

An adapter () for a portable land mobile radio (LMR) transceiver system () where the LMR includes a push-to-talk (PTT) transmitter control system. The adapter includes a tip-ring-sleeve (TRS) type interface connector () configured to accept a plug () from a standard mobile phone headset. An adapter circuit () is configured to detect a momentary actuation of an answer/end switch () of a standard mobile phone headset when a TRS plug of the standard mobile phone headset is inserted in the interface connector (). The adapter circuit alternately latches a PTT input of the LMR transmitter control system in either a transmit active state, or a transmit inactive state, in response to actuation of the answer/end switch of the mobile phone handset.

Land mobile radio and adapter for use with standard mobile phone headset

A software-defined radio includes a pair of radio subsystems such as a red (command) and black (data) radio subsystem having an operating environment conforming to the Software Communications Architecture (SCA) specification, for example, as used for Joint Tactical Radio System (JTRS). A clock is read by at least one of the radio subsystems for determining time of day. A processor of the radio subsystem is operative for distributing the time of day to the radio subsystems using a global hardware timing pulse. Each processor can include a free-running timer to which any time sources within the pair of radio subsystems are set.

Time of day synchronization and distribution within a multiprocessor embedded system and related methods

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Pittsford, NY, United States of America

Thomas Philbin