Extended power savings for electronic devices
First Claim
1. A cordless telephone, comprising:
- a base station;
a handset associated with said base station; and
a low power mode module adapted to enable said handset to maintain an extended standby condition wherein a period of time between sniffs is extended.
6 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and method to minimize power usage by electronic devices. In a particular disclosed example, the battery power of a remote handset is reduced by extending the sniff period of a cordless telephone when the remote handset is remote from its base unit and the user is not likely to use the cordless telephone (e.g., when away from the house or when asleep). A low power mode module causes the electronic device, e.g., the remote handset of a cordless telephone, to remain in an extended low power STANDBY mode, or to extends the period of the periodic transition to a receive only STANDBY mode to check status registers at the base unit, at appropriate times. In one embodiment, a low power mode table contains entries defining periods of time during which the remote handset may transition between the low power STANDBY mode and the receive only STANDBY mode. The remote handset transitions to a fully powered transmit/receive (TDD) ON mode, e.g., in response to an appropriate status condition, or in response to the activation of a particular button or sequence of buttons at the remote handset. The extended STANDBY mode may alternatively be activated in response to input from an external device such as a home security system indicating that the user of the cordless telephone is not willing or able to answering any incoming telephone calls. The extended STANDBY mode may also be entered upon determination by the cordless telephone that the telephone line is already in use by another extension (thereby rendering unlikely any receipt of a ring signal condition from the base unit).
52 Citations
44 Claims
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1. A cordless telephone, comprising:
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a base station;
a handset associated with said base station; and
a low power mode module adapted to enable said handset to maintain an extended standby condition wherein a period of time between sniffs is extended. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method to reduce battery power usage in a handset of a cordless telephone, said method comprising:
extending sniffs of said handset in an extended standby mode. - View Dependent Claims (12, 13, 14, 15, 16)
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17. Apparatus to reduce battery power usage in a handset of a cordless telephone, comprising:
means for extending sniffs of said handset in an extended standby mode. - View Dependent Claims (18, 19, 20, 21, 22)
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23. An electronic device, comprising:
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a security system status unit; and
a low power module;
wherein said low power module is adapted to enable a low power mode based on a security system status indication received from said security system status unit. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A power savings system, comprising:
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a security system; and
an electronic device;
wherein said electronic device is adapted to enter a low power mode based on a status of said security system. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification
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- Resources
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Current AssigneeAvago Technologies General IP PTE Limited (Broadcom, Inc.)
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Original AssigneeAgere Systems Incorporated (Broadcom, Inc.)
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InventorsMooney, Philip D., Cannon, Joseph M.
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current455/574
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CPC Class CodesH04W 52/0229 where the received signal i...Y02D 30/70 in wireless communication n...
