# US 10,771,777 B2 · Icon-based home certification, in-home leakage testing, and antenna matching pad

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- Number: US 10,771,777 B2
- Document ID: US10771777B2
- Status: Granted
- Kind: B2
- Application number: 16/436,890
- Filed: 2019-06-10
- Published: 2019-10-10
- Granted: 2020-09-08
- Earliest claimed: 2012-10-15
- Assignees: Viavi Solutions Inc.
- Applicants: Viavi Solutions, Inc.
- Inventors: Terry W. Bush; John J. Bush; Dexin Sun
- Web page: https://patentgrep.com/patent/US10771777B2

## CPC

- H04N 17/004: {for digital television systems}
- G06Q 10/063114: {Status monitoring or status determination for a person or group}
- H04H 20/12: Arrangements for observation, testing or troubleshooting
- H04H 20/78: CATV [Community Antenna Television] systems
- H04L 12/413: with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
- H04N 7/106: {for domestic distribution}
- H04N 7/17309: {Transmission or handling of upstream communications}
- H04N 17/00: Diagnosis, testing or measuring for television systems or their details
- H04N 21/44209: {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)}
- H04N 21/6118: {involving cable transmission, e.g. using a cable modem}
- H04N 21/6168: {involving cable transmission, e.g. using a cable modem}
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- H04H: BROADCAST COMMUNICATION (multiplex communication H04J; pictorial communication aspects of broadcast systems H04N)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## 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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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

### Claim 3 (depends on 2)

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

### Claim 4 (depends on 3)

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

### Claim 5 (depends on 2)

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

### Claim 6 (depends on 1)

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

### Claim 7 (depends on 6)

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

### Claim 8 (depends on 1)

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

### Claim 9 (depends on 1)

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

### Claim 10 (depends on 1)

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.