Motorola Corporation

Other

Charles M Mellone

Joan S DeLuca

Leonard E Nelson

Gregory O Snowden

Mark T Stair

A selective call receiver (5) has a programmable baud detector (12, 14) which is programmed (30) to test (33) for an absence of a paging signal having a predetermined baud rate at a first falsing rate and the programmed (36) to test (38) for either the presence or absence of the signal at a second baud rate lower than the first falsing rate, wherein samples from the first test (33) are also used in the determination made by the second test (38).

Recursive baud rate detection method and apparatus

A communication system and in particular a paging system for transmitting information includes a keyboard, an encoder, a transmitter, a paging, the paging receiver comprising, a decoder, a microprocessor, and a display. Entered information includes a plurality of languages and a corresponding language select signal, each language comprised of a plurality of characters. To increase throughput, the language characters are compressed by the encoder to a common set of characters. The information including the languages is transmitted to a plurality of selectable paging receivers. The paging receiver decodes the information and converts the transmitted received characters to corresponding language symbols according to the transmitted received language select signal. The language symbols are then displayed on the display.

Multilingual paging system

In a communications system wherein a transmitted message is preceeded only by an address, an asynchronous circuit detects the address and provides an initializing signal to a synchronous clock recovery circuit so that the first bit of the recovered clock signal is synchronized to the first bit of the message. During the transmission of the message the synchronous clock recovery circuit makes minor adjustments to the phase of the recovered clock to maintain synchronization between the recovered clock and the message. At the termination of the message, the synchronous clock recovery circuit is inhibited until the asynchronous circuit detects another address.

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Boca Raton, FL, United States of America

Charles M Mellone