Motorola Corporation

Matthew Joseph Stanislawski

Von Alan Mock

Eric Thomas Eaton

David Jeffery Hayes

Ronald Hugh Evoy

A method and apparatus determine a response to a control value (316, 320) periodically transmitted by a communication system in at least one code word (306, 332) of a frame (302) of data of a communication protocol. The control value (316, 320) is for controlling a receive operation, such as the sleep interval for increasing battery life of a communication receiver (122) operating in the communication system. The receiver (122) accepts (404, 504) and stores (406, 506) earlier data from an earlier transmission of the frame (302) of data, and receives (408, 508) current data from a current transmission of the frame (302) of data. The receiver (122) thereafter makes a comparison (414, 512) of the earlier data and the current data, and selects from (a) performing (424, 520) the receive operation in accordance with a current control value received in the current data and (b) performing (418, 516, 528) the receive operation in accordance with an alternative (earlier or predetermined) control value, in respone to the comparison.

Communication receiver for controlling a receive operation in response

An alerting system for a selective call communication receiver (10) which includes a battery (26A, 26B) for supplying energy at a first supply rate and a receiver (14) coupled thereto for receiving transmitted selective call message signals includes a decoder (16), a power source (44), an annunciator (34) and a charging circuit (36). The decoder (16) is coupled to the battery (26A, 26B) and decodes the received selective call message signals and generates an alert signal output in response to the received selective call message signals. The power source (44) is capable of being charged and supplies energy at a second supply rate. The annunciator (34) is coupled to the power source (44) and is responsive to the alert signal output for providing a sensible alert. The annunciator (34) consumes energy at the second supply rate when providing the sensible alert. The charging circuit (36) is coupled to the battery (26A, 26B) and is responsive to the sensible alert being generated for charging the power source (44) from the battery (26A, 26B) to replenish the energy consumed during the generation of the sensible alert.

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Boynton Beach, FL, United States of America

Matthew Joseph Stanislawski