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AssigneeAT&T Bell Laboratories
InventorsMark E. Gillis, Kenneth W. Leland, William J. Nealon, Hon Yu
Estimating the term…
A cordless telephone arranged for operation in a frequency hopping system conserves battery power in a handset unit when this unit is located remote from an associated base unit and in a standby state. While in this standby state, the handset unit resides in a low power monitoring mode and monitors a channel pseudo-randomly selected from a plurality of available channels in the frequency hopping band for receipt of an initialization signal from the associated base unit. The base unit similarly monitors this selected one of the channels for receipt of this initialization signal from the handset unit. Should ongoing communications between the base unit and the handset unit be inadvertently interrupted, the cordless telephone quickly re-establishes communications in the frequency hopping system through an initialization process executed by both the handset unit and the base unit.
An arrangement for providing communications between a base unit and a handset unit in a cordless telephone employed in a frequency hopping system, the base unit including a first transmitter and a first receiver and the handset unit including a second transmitter and a second receiver for respectively transmitting to the first receiver and receiving from the first transmitter in the base unit over any one of a plurality of communication channels, the arrangement comprising:
A method of initiating communications between a base unit and a handset unit of a cordless telephone employed in a frequency hopping system, the base unit including a first transmitter and a first receiver and the handset unit including a second transmitter and a second receiver for respectively transmitting to the first receiver and receiving from the first transmitter in the base unit over any one of a plurality of communication channels, the method comprising the steps of:
An arrangement for providing communications between a base unit and a handset unit in a cordless telephone employed in a frequency hopping system, the base unit including a first transmitter and a first receiver and the handset unit including a second transmitter and a second receiver for respectively transmitting to the first receiver and receiving from the first transmitter in the base unit over any one of a plurality of communication channels, the arrangement comprising:
In a cordless telephone, a handset unit arranged for communicating with a base unit in a frequency hopping system, the handset unit including a first transmitter and a first receiver for respectively transmitting to a second receiver and receiving from a second transmitter in the base unit over any one of a plurality of communication channels, the handset unit comprising:
In a cordless telephone, a base unit arranged for communicating with a handset unit in a frequency hopping system, the base unit including a first transmitter and a first receiver for respectively transmitting to a second receiver and receiving from a second transmitter in the handset unit over any one of a plurality of communication channels, the base unit comprising:
A method of communicating for a cordless telephone having a base unit and a handset unit employed in a frequency hopping system, the base unit including a first transmitter and a first receiver and the handset unit including a second transmitter and a second receiver for respectively transmitting to the first receiver and receiving from the first transmitter in the base unit over any one of a plurality of communication channels, the method comprising the steps of:
Dependencies are inferred from the claim text.