Invention Grant
US09461693B1 Systems and methods for frequency and bandwidth optimization with a single-wire multiswitch device
有权
使用单线多开关器件进行频率和带宽优化的系统和方法
- Patent Title: Systems and methods for frequency and bandwidth optimization with a single-wire multiswitch device
- Patent Title (中): 使用单线多开关器件进行频率和带宽优化的系统和方法
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Application No.: US14694513Application Date: 2015-04-23
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Publication No.: US09461693B1Publication Date: 2016-10-04
- Inventor: Kushan Shah , Benjamin Mui
- Applicant: The DIRECTV Group, Inc.
- Applicant Address: US CA El Segundo
- Assignee: The DIRECTV Group, Inc.
- Current Assignee: The DIRECTV Group, Inc.
- Current Assignee Address: US CA El Segundo
- Agency: Guntin & Gust, PLC
- Agent Ralph Trementozzi
- Main IPC: H04B1/40
- IPC: H04B1/40 ; H04B1/00

Abstract:
This disclosure relates to a devices and methods related to satellite information broadcasting. Example embodiments may include frequency shifting an intermediate frequency (IF) signal down-conversion from the microwave-band. As an example, down-conversion involving local oscillators may lead to frequency drift due to varying temperature and/or humidity conditions. Correcting for the frequency drift may provide an opportunity to remove or filter excess bandwidth. Further embodiments may include receiving, in a tuning request, information about a transponder type. A frequency translation module may be adjusted based, at least in part, on the transponder type related to the IF signal being input into the frequency translation module. Such frequency-shifting and transponder-specific filtering may allow Single-Wire Multiswitch (SWM) devices to provide output signals with narrower bandwidth, which may improve signal quality, cable run length, reduce power demands, etc.
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