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Method for optimizing the level of RF signals based upon the information stored on a memory

A technology of memory location and signal, applied in the direction of TV, electrical components, image communication, etc., can solve the problem of not reflecting the signal strength, not indicating the quality of the TV signal, etc.

Inactive Publication Date: 2007-04-11
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this traditional solution is not a preferred solution for the above-mentioned problems, because the AGC signal does not indicate the quality of the television signal (i.e. image and / or sound quality), but only the quantity of the received television signal (i.e. signal strength)
Also, the AGC signal does not reflect the strength of signals on adjacent channel frequencies that could cause interference problems

Method used

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  • Method for optimizing the level of RF signals based upon the information stored on a memory
  • Method for optimizing the level of RF signals based upon the information stored on a memory
  • Method for optimizing the level of RF signals based upon the information stored on a memory

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Embodiment Construction

[0011] The exemplifications given herein represent preferred embodiments of the invention and such exemplifications are not to be construed as limiting the scope of the invention in any way. In the various drawings, the same or similar reference numerals are used to identify the same or similar elements.

[0012] The present application discloses a first signal processing device comprising: a signal source, such as an antenna, for providing an information-bearing RF signal, such as an analog and / or digital television signal; a signal output point; control means, including an attenuator and / or An amplifier, such as a low noise figure amplifier, and a plurality of RF switches associated therewith, said control means being connected between said signal source and a signal output point for controlling the information carrying RF in response to the quality of the information carried by the RF signal. signal amplitude. The signal processing device may further comprise determining m...

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Abstract

A signal processing method includes the steps of tuning to a channel frequency and then measuring quality of the information borne by an information bearing RF signal on the selected channel frequency under a first operation mode, enabling an attenuator and / or an amplifier and then measuring quality of the information borne by the RF signal under a second operation mode, and determining the optimum receiving condition by comparing the quality of the information borne by the RF signal under the first and second operation modes.

Description

technical field [0001] The present invention relates to RF signal processing apparatus and methods for optimizing radio frequency (RF) signal levels suitable for RF signal receiving systems such as television signal receivers. Background technique [0002] It is desirable for television signal receivers to receive television signals with suitable signal strength throughout the television frequency band so that users can always enjoy good quality picture and sound. However, the signal strengths of individual television channels received at a specific geographic location often differ from each other due to the geographic location difference between each broadcasting station and the user's receiving location. When a receiver tunes to a television channel with undesirable signal characteristics (such as a signal that is too weak or interference that is too strong), this situation can cause several problems, including Undesirable noise of the image and cross-modulation caused by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03G3/30H03G3/20H04B1/10H04B1/18
CPCH03G3/3052H03G3/3068H04B1/109H04N5/50
Inventor 迈克尔·A·帕格尔马克斯·W·马特斯波格
Owner INTERDIGITAL CE PATENT HLDG