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

Patent metadata

Field	Value
Publication number	US-10728539-B2
Application number	US-201816174461-A
Country	US
Kind code	B2
Filing date	Oct 30, 2018
Priority date	Oct 15, 2012
Publication date	Jul 28, 2020
Grant date	Jul 28, 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 portable instrument system for determining a magnitude of leakage in a subscriber's premises Cable Television (CATV) network, the portable instrument system comprising:
a monopole antenna that receives from the network at least two test frequency signals including a first test frequency signal having a first test frequency level and a second test frequency signal having a second test frequency level different than the first test frequency level, the signal level provided by the CATV network being in a range of −5 dBmV to 0 dBmV and the first test frequency signal and second test frequency signal being at a level in a range of 40 dB to 70 dB above the signal level provided by the CATV network so that high power offset is maintained, wherein the at least two test frequency signals are generated by a dual oscillator connected to the subscriber's premises CATV network;
a signal level meter that electrically couples to the monopole antenna, analyzes the at least two test frequency signals to detect a presence of leakage at the subscriber's premises CATV network, and outputs an indication for display on a display screen in response to the presence of leakage; and
a monopole antenna matching pad that electrically and physically couples the monopole antenna and the signal level meter and including at least one filter,
wherein the monopole antenna matching pad receives the first test frequency signal and the second test frequency signal from the monopole antenna, provides the first test frequency signal to the signal level meter via the at least one filter, and provides the second test frequency signal to the signal level meter via the at least one filter.

2. The portable instrument system of claim 1 , wherein the first test frequency level is about 750 MHz.

3. The portable instrument system of claim 1 , wherein the first test frequency level is within a Long Term Evolution (LTE) frequency band.

4. The portable instrument system of claim 1 , wherein the second test frequency level is about 138 MHz.

5. The portable instrument system of claim 1 , wherein the second test frequency level is within an aeronautical frequency band.

6. The portable instrument system of claim 1 , wherein the monopole antenna matching pad includes:
a first connector coupleable to the monopole antenna,
a second connector coupleable to the signal level meter,
an enclosure body coupled between and at least partially surrounded by the first connector and the second connector,
a sleeve surrounded by the enclosure body, the first connector, and the second connector, and
a printed circuit board (PCB) assembly having a PCB, a first pin electrically coupled between the PCB and the first connector, and a second pin electrically coupled between the PCB and the second connector,
wherein the PCB assembly is at least partially surrounded by the sleeve.

7. The portable instrument system of claim 6 , wherein the sleeve is a beryllium copper sleeve.

8. The portable instrument system of claim 1 , wherein at least one of the monopole antenna and the signal level meter is coupled to a global positioning system (GPS) receiver to track movement of the signal level meter.

9. The portable instrument system of claim 1 , further comprising a signal generator including the dual oscillator to produce the at least two test frequency signals.

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

• H04H20/78

  CATV [Community Antenna Television] systems · CPC title

• H04N21/6118

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

• H04N7/106

  for domestic distribution · CPC title

• H04L12/413

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