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GPS receiver

A receiver, GPS signal technology, applied in broadcast receiving circuits, beacon transmitters, instruments, etc., can solve problems such as mutual interference and cost

Inactive Publication Date: 2002-11-20
PENDRAGON WIRELESS LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] However, using a complete receiver for DAB and GPS signals in one housing is not only costly, but also creates mutual interference in processing the received DAB and GPS signals

Method used

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[0020] figure 1 A first embodiment of a combined GPS / DAB receiver according to the invention is shown, comprising: a Global Positioning System (GPS) receiver 1-6, 8 for receiving and processing GPS signals; for receiving and processing digital audio Apparatus for broadcasting (DAB) signals 1-7 comprising a common receiver front end with a low noise amplifier (LNA) 1 which receives the RF GPS and DAB signals from the antenna ANT and subsequently couples these signals to a mixing stage 2; IF filtering means 4 and analog-to-digital (AD) conversion means 5 . A local oscillator signal is supplied to the mixing stage 2 by a tunable oscillator 3 . The AD conversion device 5 can be coupled to either a digital DAB signal path or a GPS signal path through the controllable switching element 6 . The digital DAB and GPS signal paths include a DAB demodulator 7 and a GPS signal processor 8, respectively. The DAB demodulator 7 is connected to a control signal generator 9 comprising a dete...

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Abstract

Global Position System (GPS) receiver for receiving and processing GPS signals comprising means for receiving and processing Digital Audio Broadcast (DAB) signals. To realize simultaneous processing of both DAB and GPS signals the receiver is provided with a receiver front end, a mixer stage, filtering means and analog to digital converter means being coupled to digital DAB and GPS signal paths, including DAB signal eliminating means for selectively eliminating DAB signals from said digital GPS signal path.

Description

Background of the invention [0001] The invention relates to a Global Positioning System (GPS) receiver for receiving and processing GPS signals, the apparatus comprising means for receiving and processing Digital Audio Broadcasting (DAB) signals. Such a receiver is known, for example, from the article "Mobile Satellite Communications for Consumers" by Mr. G.K. Noreen, Microwave Journal, November 1991, pp. 24-34. Known receivers disclose the use of a DAB receiver and a GPS receiver in one receiver housing. In this paper, the upcoming advantages of having point-to-multipoint transmission capability and location information are explained. [0002] However, using a complete receiver for DAB and GPS signals in one housing is not only costly, but also creates mutual interference in processing the received DAB and GPS signals. Summary of the invention [0003] It is an object of the invention to reduce the cost of implementing such a receiver while maintaining or even improving t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S1/00G01S5/14G01S19/23H04B1/16H04H40/18
CPCG01S19/36H04H40/18H04H2201/20G01S19/13G01S19/14
Inventor J·A·惠斯肯
Owner PENDRAGON WIRELESS LLC
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