Motorola Corporation

Bruce D Oberlies

Joseph Patino

Steven T Barrett

Kevin B Mayginnes

Mark V Anderson

Michael P Holmans

Michael P Stock

A remote microphone display select system (200) used with a two-way radio (201) for controlling the orientation of displayed information includes a remote microphone (101) which is electrically connected to a display driver (203). A hall effect switch (207) is used with the display driver (203) and acts to alter the orientation of displayed information on a display (106) to either a first orientation or second orientation when the hall effect switch (207) is disabled.

Remote microphone display select system and method of using same

A noise signal is obtained from a data processor output, such as a data line, an address line, or a control line, and used to control the frequency modulation of an oscillator. The modulated output is used to clock the data processor.

Spread spectrum data processor clock

A radio (100) capable of automatically selecting an encryption algorithm from among a plurality of algorithms (122 and 124) is disclosed. The method for automatically selecting the proper encryption hybrid includes the steps of: attempting to decrypt the encrypted signal with one of the plurality of encryption algorithms; determining if the encryption algorithm used to decrypt the encrypted signal matches the encryption algorithm used by the encrypted signal; and developing a control signal upon the proper matching of the encryption algorithms.

Automatic encryption selector

A decryption device wherein an encryption/decryption module can be operated at various clock speeds, and wherein an associated processor controls these clock speeds depending upon the moment to moment processing interrelationship between the encryption/decryption module and the processor. In particular, when loading a new key into the encryption module, or when utilizing the encryption module to decrypt an encrypted new key, the processor alters the usual clock rate for the encryption module.

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Coral Springs, FL, United States of America

Bruce D Oberlies