Patent ReferencesPower efficient receiver GPS data recorder and playback system Integrated communicative watch Method and system for information dissemination using television signals Digital radio prepaid music recording system Image reject mixer circuit arrangements Power-saving mode for portable communication devices Mobil communication apparatus and information providing system using the mobile communication apparatus Patent #: 6871048 InventorAssigneeApplicationNo. 11215688 filed on 08/29/2005US Classes:455/296, Noise or interference elimination455/574, Power conservation455/343.4Based on schedule informationExaminersPrimary: Jackson, Blane J.Attorney, Agent or FirmForeign Patent References
International ClassH04B 1/16AbstractAn apparatus and method is related to wireless communication devices with a reduced-noise recording receiver. The recording receiver receives a transmitted signal, converts the received signal to a digital base-band signal and stores the digitized base-band signal in a buffer for subsequent processing. The stored digital signals are subsequently processed to recover the transmitted data signal. The overall signal integrity in the receiver is improved by performing signal processing after reception is complete. The IF processing section of the receiver includes a frequency band translation section. The frequency band translation section translates the frequency band of the IF signal into a non-harmonically related frequency band. Since the IF signal is in an unrelated frequency band, data can be recovered from the transmission signal with improved signal-to-noise characteristics. At least a portion of the non-essential electronics are disabled during reception to avoid additional interference and sources of noise.Field of SearchHaving measuring, testing, or monitoring of system or partNoise, distortion, or unwanted signal detection (e.g., quality control, etc.) Integrated with other device Having particular power or bias supply (including self-powered or battery saving means) Battery saving based on received signal Based on identification Based on schedule information Battery saving based on detected power source level Power control, power supply, or bias voltage supply Noise or interference elimination With particular receiver circuit Power conservation | |