Receiver for and method of extending battery life
First Claim
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1. A selective call communications unit arranged and constructed for extended battery life comprising in combination:
- a first receiver having low power consumption for receiving a call signal to provide an enable signal; and
a messaging receiver, activated by said enable signal, for receiving a message intended for the selective call communications unit.
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Abstract
A method for and selective call communications unit (CU) arranged and constructed for extended battery life includes a first receiver having low power consumption, preferably operating an a duty cycle, for receiving a call signal to provide an enable signal, in one aspect conditioned on a match of a selective call address to an address for the CU; and a messaging receiver, activated by the enable signal, for receiving a message intended for the CU. These methods can result in a battery life for the CU approaching a shelf life of the battery.
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Citations
30 Claims
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1. A selective call communications unit arranged and constructed for extended battery life comprising in combination:
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a first receiver having low power consumption for receiving a call signal to provide an enable signal; and
a messaging receiver, activated by said enable signal, for receiving a message intended for the selective call communications unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 26, 27, 28, 29, 30)
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13. A method in a selective call communications unit of extending battery life, the method including the steps of:
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first receiving a call signal using a first receiver to provide an enable signal in a first low power consumption mode; and
second receiving, responsive to said enable signal and in a second power consumption mode using a messaging receiver, a message intended for the selective call communications unit. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A selective call communications unit arranged and constructed for extended battery life comprising in combination:
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a first receiver having low power consumption for receiving a call signal to provide an enable signal;
a messaging receiver, activated by said enable signal, for receiving a message intended for the selective call communications unit; and
a transmitter, activated by said enable signal for responding to said message.
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Specification