Icon-based home certification, in-home leakage testing, and antenna matching pad

Patent metadata

Field	Value
Publication number	US-10771777-B2
Application number	US-201916436890-A
Country	US
Kind code	B2
Filing date	Jun 10, 2019
Priority date	Oct 15, 2012
Publication date	Sep 8, 2020
Grant date	Sep 8, 2020

Abstract

A method for determining the magnitude of leakage in a subscriber's premises CATV installation; a frequency multiplexer for coupling between an antenna and a receiver for the multiplexed frequencies; and, a method for a technician to certify a CATV subscriber's premises for the provision of CATV services are disclosed.

First claim

The invention claimed is:

1. A signal generator for determining leakage at a subscriber's premises in a cable television (CATV) network, the signal generator comprising:
a frequency source comprising at least one oscillator, the frequency source operable to generate (i) a first test signal having a first frequency in an aeronautical band and a first signal level, and (ii) a second test signal having a second frequency in an Long Term Evolution (LTE) band and a second signal level, wherein the first and second signal levels are each 40 dB to 70 dB above a third signal level of a cable signal supplied by the CATV network;
shielding at the signal generator to prevent radiation over the air of the first and second test signals from the signal generator; and
a connector configured to be secured to a network port at the subscriber's premises to electrically couple the frequency source to cable wiring at the subscriber's premises, in order to supply the first and second test signals through the connector and the network port to the cable wiring at the subscriber's premises, wherein the connector is configured to be secured to the network port in order to supply the first and second test signals through the connector and the network port to the cable wiring at the subscriber's premises for maintaining a high power offset between the first and second test signals and the cable signal supplied by the CATV network, wherein the third signal level of the cable signal supplied by the CATV network is in a range of −5 dBmV to 0 dBmV.

2. The signal generator of claim 1 , wherein the first frequency is about 138 MHz.

3. The signal generator of claim 2 , wherein the first frequency is about 139.25 MHz.

4. The signal generator of claim 3 , wherein the second frequency is about 757.5 MHz.

5. The signal generator of claim 2 , wherein the second frequency is about 750 MHz.

6. The signal generator of claim 1 , wherein the second frequency is about 750 MHz.

7. The signal generator of claim 6 , wherein the second frequency is about 757.5 MHz.

8. The signal generator of claim 1 , wherein the first and second signal levels are each in a range of 40 dBmV to 65 dBmV.

9. The signal generator of claim 1 , wherein the connector is configured to be secured to a ground block at the subscriber's premises.

10. The signal generator of claim 1 , wherein the at least one oscillator comprises first and second oscillators, and wherein the frequency source is operable to generate (i) the first test signal using the first oscillator and (ii) the second test signal using the second oscillator.

Assignees

• Viavi Solutions Inc

Inventors

• Bush Terry W
• Bush John J
• Sun Dexin

Classifications

• H04N17/00 Primary

  Diagnosis, testing or measuring for television systems or their details · CPC title

• G06Q10/063114

  Status monitoring or status determination for a person or group · CPC title

• H04L12/413

  with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD] · CPC title

• H04N21/6118

  involving cable transmission, e.g. using a cable modem · CPC title

• H04N21/44209

  Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network (arrangements for maintenance or administration in data switching networks involving bandwidth and capacity management H04L41/0896) · CPC title