GPS receiver and related method
First Claim
1. A method of operating a GPS receiver for the acquisition of GPS signals through the processing of the received signal over an integration time period, including the steps of switching the integration time period of the receiver between two discrete values, and switching between the said two discrete values in response to a signal, other than a GPS signal, indicative of the environmental factors within which the receiver is located, wherein the receiver employs (1) a predetermined operational profile and said at least two discrete integration time periods form part of the said profile or (2) a control signal for controlling said switching step is developed on the basis of an estimation of the local environment based on a time-indicating signal.
3 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a method of operating a GPS receiver for the acquisition of GPS signals through the processing of the receiver signal over an integration time period, including the step of switching the integration time period of the receive between two discrete values where the controlling step of switching between the two discrete values is responsive to a signal, other than a GPS signal, indicative of the environmental factors within which the receiver is located, wherein the receiver employs (1) a predetermined operational profile and said at least two discrete integration time periods form part of the said profile or (2) a control signal for controlling said switching step is developed on the basis of an estimation of the local environment based on a time-indicating signal.
5 Citations
11 Claims
- 1. A method of operating a GPS receiver for the acquisition of GPS signals through the processing of the received signal over an integration time period, including the steps of switching the integration time period of the receiver between two discrete values, and switching between the said two discrete values in response to a signal, other than a GPS signal, indicative of the environmental factors within which the receiver is located, wherein the receiver employs (1) a predetermined operational profile and said at least two discrete integration time periods form part of the said profile or (2) a control signal for controlling said switching step is developed on the basis of an estimation of the local environment based on a time-indicating signal.
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11. A GPS receiver arranged for the acquisition of GPS signals through the processing of the received signal over an integration time period, the receiver being arranged to operate with either of at least two discrete integration time periods and including control means for switching between the said integration time periods, wherein said control means is responsive to a signal, other than a GPS signal, indicative of the environmental factors within which the receiver is located;
and including a processor configured to switch the integration time period of the receiver between two discrete values, and switch between said two discrete values in response to a signal, other than a GPS signal, indicative of the environmental factors within which the receiver is located, wherein the receiver employs (1) a predetermined operational profile and said at least two discrete integration time periods form part of the said profile or (2) a control signal for controlling said switching step is developed on the basis of an estimation of the local environment based a time-indicating signal.
Specification