Method and system for determining parameters of a satellite signal

Patent metadata

Field	Value
Publication number	US-9360513-B2
Application number	US-201414333560-A
Country	US
Kind code	B2
Filing date	Jul 17, 2014
Priority date	Jul 23, 2013
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

A method and system for determining parameters of a satellite signal present in a coaxial cable, the method including the steps of aligning two capacitive coupling sensors in proximity to a length of the coaxial cable, wherein the distance between the capacitive coupling sensors is below 10 centimeters; receiving from two capacitive coupling sensors a signal being a differential voltage in the coaxial cable between the locations of the capacitive coupling sensors wherein the voltage is relative to a voltage level in a coaxial cable; amplifying the differential voltage by a bandpass amplifier; detecting a valid DiSEqC command sequence being indicative of signal quality.

First claim

The invention claimed is:

1. A method for determining parameter of a satellite signal present in a coaxial cable 102 , the method comprising the steps of:
aligning two capacitive coupling sensors 208 , 209 in proximity to a length of the coaxial cable 102 , wherein the distance between the capacitive coupling sensors 208 , 209 is below 10 centimeters;
receiving 401 from two capacitive coupling sensors 208 , 209 a signal being a differential voltage in the coaxial cable 102 between the locations of the capacitive coupling sensors 208 , 209 , wherein the voltage is relative to a voltage level in a coaxial cable 102 ;
amplifying the differential voltage by a bandpass amplifier 210 ;
detecting a valid DiSEqC command sequence being indicative of signal quality;
outputting a signal being indicative of signal quality to an indication means 214 .

2. The method according to claim 1 , characterized in that aligning the two capacitive coupling sensors 208 , 209 in proximity to a length of the coaxial cable 102 means aligning the two capacitive coupling sensors 208 , 209 adjacent to the coaxial cable 102 .

3. The method according to claim 1 , characterized in that the two capacitive coupling sensors 208 , 209 are insulated.

4. The method according to claim 1 , characterized in that the valid DiSEqC command sequence being indicative of signal quality comprises a frame byte value of E0 (hexadecimal), address value of 40 (hexadecimal), command value of 44 (hexadecimal).

5. The method according to claim 4 , characterized in that the valid DiSEqC command sequence being indicative of signal quality comprises a data byte 304 comprising information regarding signal quality/strength as determined by a receiver 104 connected to the coaxial cable 102 .

6. An device for determining a parameter of a satellite signal present in a coaxial cable 102 , the device comprising:
two capacitive coupling sensors 208 , 209 in proximity to a length of the coaxial cable 102 , wherein the distance between the capacitive coupling sensors 208 , 209 is below 10 centimeters;
an electrical path connecting each of the two capacitive coupling sensors 208 , 209 to a bandpass amplifier 210 ;
an output path of the bandpass amplifier 210 connected to a processor 213 comprising means for detecting a valid DiSEqC command sequence being indicative of signal quality;
an output path configured to output a signal being indicative of signal quality to an indication means 214 .

7. The device according to claim 6 , characterized in that a discrimination circuit is present between the bandpass amplifier 210 and the processor 213 configured to obtain a square signal from a sinusoidal signal.

Assignees

• Advanced Digital Broadcast Sa
• Advanced Digital Broadcast Sa

Inventors

• Grzelka Piotr
• Gizycki Robert

Classifications

• G01R29/0892 Primary

  Details related to signal analysis or treatment; presenting results, e.g. displays; measuring specific signal features other than field strength, e.g. polarisation, field modes, phase, envelope, maximum value · CPC title

• H01Q1/1257 Primary

  using the received signal strength · CPC title

• H04H20/12

  Arrangements for observation, testing or troubleshooting · CPC title

• H04H40/90

  specially adapted for satellite broadcast receiving · CPC title

• H04B5/0043

  Electricity · mapped topic