Motorola Corporation

Motorola Mobility LLC

Christopher F Bussan

Charles Philipp Binzel

Eric Jay Hefner

Joseph M Hansen

Mark Pecen

George Jeffrey Geier

Duane C Rabe

Donald Arthur Dorsey

Patrick J Marry

Arvind S Arora

Daniel J DeClerck

William P DeClerck

John Thomas Solar

Todd Conroy

A method for requesting location information, for example, Enhanced Observed Time of Arrival timing information, from mobile wireless communications in wireless communications networks. The exemplary location request () includes multiple response interval field () specifying intervals at which multiple responses to the location request must be sent or maximum intervals between which multiple responses to the location request must be sent, a final response time field () specifying a maximum time interval during which a final response to the location request must be sent, and an initial response time field () specifying when an initial response to the location request must be sent.

Location requests and measurement responses in wireless communications networks and methods

A method and apparatus is provided for power conservation of a hardware module () which is coupleable to a portable electronic device (). The hardware module () has unique identification information associated therewith and stored therein. The unique identification information is provided periodically () to the portable electronic device () and stored therein (). To conserve power, the portable electronic device () sends a power-down notice () to the hardware module (), the module controller () stores current state information of the hardware module () in a non-volatile memory () thereof, and the hardware module () is powered off ().

Method and apparatus for secure module restoration

A method for determining location technology supported by a wireless communications network including sending () a location request, for example a MO-LR request, from a mobile wireless subscriber device to the network, receiving a network response () in reply to the location request, determining the subscriber device location technology supported by the network from the network response (), and in some embodiments the location technology of the subscriber device is controlled based on the technology supported by the network.

Location technology support determinations in wireless communications networks and devices

A method of coordinating events in a microprocessor-based electronic device having a sleep mode to reduce current drain includes a first step of determining a list of times to perform associated operating system events requiring a wake-up period for the device. A next step includes establishing a timing of fixed events wherein the electronic device enters a wake-up period to perform the fixed events. A next step includes delaying the time for an operating system event to coincide with a fixed event such that the electronic device utilizes one coincident wake-up period to perform both of the operating system event and the fixed event. This removes the current drain associated with entering and exited an additional sleep period.

Event coordination in an electronic device to reduce current drain

The present invention provides a method and apparatus for generating time of arrival estimates for use by a wireless communication network for locating the position of a wireless or mobile source () within the service area of the wireless communication network. The mobile source generates time of arrival estimates from data bursts received from base sites () operating within the network. In at least one embodiment, the mobile source (), then, communicates the time of arrival estimates for each of the base sites () to the network, from which the location of the mobile source () is determined. In at least some instances, the mobile units additionally determine a variance estimate for each time of arrival estimates, which is representative of the degree of confidence in the time of arrival information being supplied to the network.

Method and apparatus for generating time of arrival estimates for use in determining a location

A wireless communication apparatus ( ) and communication method provides an audio-based call connection operation. For example, one method includes receiving an incoming call message ( ) and receiving an input audio answer signal ( ), such as a user's voice, in response to the incoming call message ( ). This method includes detecting an amplitude or characteristic of the input audio answer signal ( ) and sending an answer call message ( ) based on the detected amplitude level of the input audio answer signal ( ). In another embodiment, the process includes storing the input audio answer signal ( ) as preconnection audio information ( ) and subsequently sending the preconnection audio information ( ) as a post connection greeting. For example, a user saying the word &ldquo;hello,&rdquo; completes the call without any additional greeting required. In another embodiment, prestored audio greeting information, such as key word templates, is used to compare with the input audio answer signal ( ) to determine whether to send the answer call message ( ) to complete the call connection.

Method and apparatus for audio signal based answer call message generation

A method and associated circuitry for acquiring a channel of a set of frequency channels by a radio receiver. The radio receiver scans selected control channels and measures the power levels of signals generated upon the respective ones of the control channels and stores values. An attempt to effectuate a communication link with a transmitter which transmits a data signal upon one of the control channels is only attempted if the measured power level on such control channel increases beyond a certain amount. The tuning frequency of the tuning circuitry can be retuned when the tuning circuitry is initially tuned to receive a communication signal transmitted by a transmitter of a less-than-most desired network of transmitters according to a second embodiment.

Method and circuit for acquisition by a radio receiver

A radio transceiver (119) including a transmitter (111), a receiver (107), and a controller (113). The controller (113) creates a fixed period reference signal (201) and a second reference signal (203) which has a variable delay in time from the fixed period reference signal (201). In addition the controller (113) creates a plurality of control signals used to control parts of the transceiver (119) and which are time dependant upon the second reference signal 203). Therefore, the adjusting of the variable delay of the second signal subsequently adjusts the plurality of control signals.

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Crystal Lake, IL, United States of America

Christopher F Bussan