System for conserving battery life in a battery operated device
First Claim
1. A system for conserving battery life in a battery operated device comprising:
- a receiver for receiving a transmission that includes a postamble; and
a microprocessor coupled to the receiver, the microprocessor periodically partially awakening to determine whether the transmission is likely a FLP by examining the postamble.
4 Assignments
0 Petitions
Accused Products
Abstract
An electronic tire maintenance system is provided for measuring a parameter of a device at a first location. The system includes a sensor for measuring the device parameter and generating a data signal representing the measured parameter. The system also includes a microprocessor coupled to the sensor for activating the sensor on a first periodic basis to measure the device parameter. The microprocessor includes a memory for storing the generated data signal representing the measured parameter. A transmitter and a receiver are coupled to the microprocessor. The microprocessor periodically partially awakens to determine, on a second periodic basis, if a received transmission is a valid interrogation signal and, if so, fully awakens and responds to the valid interrogation signal, via the transmitter, by at least transmitting the last stored measured parameter. In one embodiment, the device is a tire tag mounted inside a tire that measures tire data and transmits that data to a remote source in response to an interrogation request, an alert condition, or automatically on a periodic basis.
124 Citations
56 Claims
-
1. A system for conserving battery life in a battery operated device comprising:
-
a receiver for receiving a transmission that includes a postamble; and
a microprocessor coupled to the receiver, the microprocessor periodically partially awakening to determine whether the transmission is likely a FLP by examining the postamble. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A system for conserving battery life in a battery operated device comprising:
-
a receiver for receiving a transmission that includes a postamble; and
a microprocessor coupled to the receiver, the microprocessor periodically partially awakening to determine whether the transmission is likely a FLP by turning ON the receiver only long enough to determine if the transmission includes a predetermined number of transitions. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
-
-
44. A method for conserving battery life in a battery operated device comprising:
-
receiving a wireless transmission;
periodically partially awakening; and
determining if the wireless transmission is likely a FLP by determining if the transmission includes a valid postamble. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53)
-
-
54. A method for conserving battery life in a battery operated device comprising:
-
targeting a specific device out of a plurality of devices;
transmitting a transmission that includes a postamble;
awakening to a first state to determine whether the transmission is likely a FLP by examining the postamble; and
awakening to a second state if the transmission is likely a FLP. - View Dependent Claims (55, 56)
-
Specification