Invention Grant
US07995971B2 Method and system for clocking FM transmit FM receive, and near field communication functions using DDFS
有权
使用DDFS对FM发送FM接收和近场通信功能进行定时的方法和系统
- Patent Title: Method and system for clocking FM transmit FM receive, and near field communication functions using DDFS
- Patent Title (中): 使用DDFS对FM发送FM接收和近场通信功能进行定时的方法和系统
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Application No.: US11754705Application Date: 2007-05-29
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Publication No.: US07995971B2Publication Date: 2011-08-09
- Inventor: Ahmadreza Rofougaran , Maryam Rofougaran
- Applicant: Ahmadreza Rofougaran , Maryam Rofougaran
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McAndrews, Held & Malloy, Ltd.
- Main IPC: H04B1/40
- IPC: H04B1/40

Abstract:
Methods and systems for clocking FM transmit, FM receive and near field communication functions using DDFS are disclosed. Aspects of one method may include generating a Bluetooth signal that may comprise, for example, I and Q components, or Bluetooth local oscillator (LO) signals, for use in Bluetooth communication. One of the two Bluetooth LO signals may then be used by a DDFS to generate I and Q LO signals for FM reception and/or transmission. One of the I and Q LO signals for FM communication may be used by another DDFS to generate at least one LO signal for near field communication (NFC) transmission and/or reception. While the Bluetooth LO signal may vary in frequency as Bluetooth frequency hopping occurs, the FM LO signals may remain constant for a specific channel frequency. Similarly, while the FM LO signals may be changed to tune to different FM channels, the NFC LO signals may remain at a constant frequency.
Public/Granted literature
- US20080233872A1 Method and System for Clocking FM Transmit FM Receive, and Near Field Communication Functions Using DDFS Public/Granted day:2008-09-25
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