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Wideband sigma-delta modulator receiver for FM signal reception

A modulator, analog signal technology, used in modulation carrier systems, adjustment of resonant circuits, digital transmission systems, etc.

Inactive Publication Date: 2019-06-25
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, if a cellular provider changes its particular frequency band, a particular vehicle (which may have a useful life of 15 to 20 years) tuned to the previous frequency band may not be able to operate effectively in the new frequency band
This therefore requires automakers to maintain a myriad of radio platforms, components and suppliers to support each deployed standard and also provide upgradeable paths as the cellular environment changes, an expensive and complex proposition

Method used

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  • Wideband sigma-delta modulator receiver for FM signal reception
  • Wideband sigma-delta modulator receiver for FM signal reception
  • Wideband sigma-delta modulator receiver for FM signal reception

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Embodiment Construction

[0014] The following discussion of embodiments of the invention with respect to cellular radio architectures is merely exemplary in nature and in no way intended to limit the invention or its application or uses. For example, the radio architecture of the present invention is described as having application to vehicles. However, as will be apparent to those skilled in the art, the radio architecture may have applications other than automotive applications.

[0015] The cellular radio architecture discussed in this paper is not only applicable to cellular wireless technology, such as WiFi (IEEE802.11) technology. Additionally, cellular radio architectures are presented as full-duplex wireless systems, ie systems that both transmit and receive. For receive-only wireless services (for example, Global Positioning System (GPS), Global Navigation Satellite System (GNSS), and various entertainment radios such as AM / FM, Digital Audio Broadcasting (DAB), SiriusXM, etc.), only the rece...

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Abstract

A method and apparatus for utilizing a wideband radio frequency filter to capture an FM frequency band and configuring the characteristics of a delta-sigma modulator in order to processes desired signals within the FM frequency band. Specifically, the system and method are operative to receive a plurality of FM signals within an FM frequency band, filter the frequency band using a wideband filter,modulating the plurality of FM signals using a delta sigma modulator, down converting and processing the desired signals in parallel.

Description

technical field [0001] The present application relates generally to wideband radio systems designed to accommodate various global radio standards, and more particularly to cellular radio architectures employing FM receiver architectures capable of providing digital representations of all signals in the FM band. The architecture is based on a single wideband delta-sigma modulator that captures all signals in the FM band and simultaneously produces a digital representation of each signal. Background technique [0002] Traditional cellular phones employ different modes of operation and frequency bands that have been implemented in hardware by integrating multiple different radio front-end and baseband processing chips into one platform (such as supporting Global System for Mobile Communications (GSM), Tri-band or quad-band subscriber handsets such as the General Packet Radio Service (GPRS) are supported. Known cellular receivers integrate certain antennas and baseband data pat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/10H04B1/12
CPCH03M3/396H03M3/42H04B1/406H04B1/006H04B1/0003H03J2200/11H03M3/462H04B1/001H04B1/082H04B2001/0408H04L2027/0026H04B1/0475H04B1/48H04B1/0057H04L27/0002H04B1/0483
Inventor C·D·巴林杰M·艾哈迈德J·康J·C·李E·A·索韦罗T·J·塔尔迪
Owner GM GLOBAL TECH OPERATIONS LLC
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