Selective call transceiver with system approved power saving state
AssigneeMotorola, Inc.
InventorsRichard C. Bernhardt, Clinton C. Powell, II
Life of this patent
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Abstract
A battery-powered selective call transceiver, operating in two-way communication with an RF communication system, can be put in a power saving state. A user control on the transceiver allows a user to select the duration of a power saving interval. The transceiver sends to the communication system a signal requesting that the transceiver enter a power saving state for the selected interval. Upon receipt of an acknowledgment signal from the system, the transceiver enters the power saving state.
Claims13
For use with an asynchronous communication system that exchanges information with a selective call transceiver by transmissions that occur at random intervals, a method of establishing a power saving state within the selective call transceiver without losing information comprising:
- a) establishing a communication link between the selective call transceiver and the communication system;
- b) sending from the selective call transceiver to the communication system a signal requesting that the selective call transceiver, be permitted to enter a power saving state for a predetermined, uninterrupted power saving interval;
- c) if the communication system approves the request, sending an acknowledgment signal from the communication system to the selective call transceiver;
- d) if the acknowledgement signal indicating request aaproval is received by the selective call receiver, causing the selective call transceiver to enter the power saving state;
- and
- e) during the power saving interval, storing messages intended for the selective call transceiver.
In a selective call transceiver that is capable of two-way RF communication with an asynchronous communication system by transmissions that occur at random intervals, a method of establishing a power saving state in the selective call transceiver, comprising:
- a) sending to the communication system a signal requesting that the selective call transceiver be permitted to enter a power saving state for a predetermined, uniterrupted power saving interval;
- b) receiving an acknowledgement signal from the communication system approving the request to enter a power saving state;
- and
- c) entering the power saving state if the acknowledgement signal is received.
In a selective call transceiver that is capable of two-way RF communication with an asynchronous communication system by transmissions that occur at random intervals, a method of establishing a power saving state in the selective call transceiver, comprising:
- a) sending to the communication system a signal requesting that the selective call transceiver be permitted to enter a power saving state for a user-selected, uninterrupted power saving interval;
- b) receiving an acknowledgment signal from the communication system approving the request to enter a power saving state;
- c) entering the power saving state if the acknowledgement signal is received;
- d) detecting the end of the power saving interval;
- and
- e) sending a signal to the communication system indicating that the selective call transceiver's power saving state has ended.
A battery-powered selective call transceiver capable of two-way RF communication with an asynchronous communication system by transmissions that occur at random intervals, comprising:
- a receiver for receiving incoming signals;
- a transmitter for sending outgoing signals at random intervals;
- a memory for storing an indication of a duration for a power saving state;
- and
- a processor coupled to the memory and programmed to cause the transmitter to send to the communication system a signal indicating that the selective call transceiver be permitted to enter the power saving state for a predetermined, uninterrupted power saving interval, and to cause the selective call reveiver to enter the power saving state in response to the selective call receiver receiving a signal from the communication system indicating request approval.
Dependencies are inferred from the claim text.