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FM receiver and method for improving receiving performance thereof

A receiver, switcher technology, applied in the adjustment of resonant circuits, the arrangement of frequency demodulators, the resonant circuit with a central processing unit, etc., can solve problems such as increasing interference

Inactive Publication Date: 2009-07-01
BROADCOM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these antennas also become more sensitive to changes in the operating environment and increase interference with other equipment components

Method used

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  • FM receiver and method for improving receiving performance thereof
  • FM receiver and method for improving receiving performance thereof
  • FM receiver and method for improving receiving performance thereof

Examples

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Embodiment Construction

[0075] figure 1 is a functional block diagram of a communication system including circuit devices and network components and its operation according to an embodiment of the present invention. More specifically, a plurality of network service areas 04 , 06 and 08 are part of network 10 . Network 10 includes a plurality of base stations or access points (APs) 12 - 16 , a plurality of wireless communication devices 18 - 32 , and network hardware components 34 . Wireless communication devices 18-32 may be laptop computers 18 and 26, personal digital assistants 20 and 30, personal computers 24 and 32, and / or cellular telephones 22 and 28.

[0076] Base stations or APs 12-16 are connected to network hardware 34 through local area network (LAN) connections 36, 38 and 40. Network hardware 34, which may be a router, switch, bridge, modem, system controller, etc., provides communication system 10 with wide area network (WAN) connections 42 to external network components. Each base st...

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PUM

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Abstract

An FM receiver including an FM antenna that receives continuous wavelength signals, where the FM receiver is coupled to the FM antenna and operable to alter a center frequency of a gain profile of the FM antenna. The FM receiver includes a low noise amplifier module that is coupled to amplify the continuous wavelength signal to produce an amplified RF signal therefrom. A down conversion module is coupled to mix the amplified RF signal with a local oscillation to produce an information signal. A filter module is coupled to filter the information signal to produce a filtered information signal. A demodulation module is coupled to capture audio information from the filtered information signal. A signal monitoring module is coupled to monitor the FM signal quality of a received continuous wavelength signal. The signal monitoring module produces a signal quality indication therefrom. An antenna control module produces a signal value based upon the signal quality indication, wherein the signal value operates to alter the center frequency of a gain profile of the FM antenna. The present invention also provides a wireless hand-held device having the FM receiver.

Description

technical field [0001] The present invention relates to wireless communications, and more particularly, to signal reception and transmission within mobile wireless communication systems. Background technique [0002] As is known, communication systems support wireless and wired communications between wireless and / or wired communication devices. These communication systems range from national and / or international cellular telephone systems to the Internet, and peer-to-peer home wireless networks. Every communication system is constructed and operates according to one or more communication standards. One or more standards under which wireless communication systems operate include, but are not limited to: IEEE802.11, Bluetooth, Advanced Mobile Phone Service (AMPS), Digital AMPS, Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA) , Local Multipoint Distribution System (LMDS), Multiplex Multipoint Distribution System (MMDS), and / or corresponding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/16
CPCH03J2200/06H03D3/002H03J7/02H03J1/0008H03J2200/10H04B2001/1072H04B1/10H04B1/16
Inventor 吉泽斯·卡斯塔涅达西玛·阿南德玛雅姆·罗弗戈兰阿玛德雷兹·罗弗戈兰
Owner BROADCOM CORP
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