Digitally modulated CATV power measurement using undersampling

Details Digitally modulated CATV power measurement using undersampling Digitally modulated CATV power measurement using undersampling

1997-12-02

2000-03-21

Pham, Chi H.

Pulse or digital communications

Testing

4552264, H04B 1700, H04B 346, H04Q 120

Patent

active

060410760

ABSTRACT:
A signal power measurement apparatus for measuring the power of a first signal, with the first signal comprising a carrier signal modulated by an information signal. One embodiment of the present invention includes a signal power measurement apparatus comprising a RF receiver, an A/D converter, and a digital signal processing circuit. The RF receiver is operable to receive a first signal and generate an intermediate signal, with the intermediate signal comprising at least a portion of the first signal and having a bandwidth and a cutoff frequency. The A/D converter is operably connected to the RF receiver to receive the intermediate signal. The A/D converter generates a digital intermediate signal based on the intermediate signal, the digital intermediate signal having a sample rate less than twice the cutoff frequency. The digital signal processing circuit is operable to perform a power measurement on the digital intermediate signal, with the power measurement being representative of the power of at least a portion of the first signal.

REFERENCES:
patent: 3908165 (1975-09-01), Caudwell
patent: 4273955 (1981-06-01), Armstrong
patent: 4381546 (1983-04-01), Armstrong
patent: 4516216 (1985-05-01), Armstrong
patent: 4685065 (1987-08-01), Braun et al.
patent: 4816825 (1989-03-01), Chan et al.
patent: 5093842 (1992-03-01), Gimlin et al.
patent: 5166954 (1992-11-01), Grizmala et al.
patent: 5307284 (1994-04-01), Brunfeldt et al.
patent: 5386495 (1995-01-01), Wong et al.
patent: 5451947 (1995-09-01), Morrison
patent: 5489875 (1996-02-01), Cavers
patent: 5493210 (1996-02-01), Orndorff et al.
patent: 5528507 (1996-06-01), McNamara et al.
patent: 5533048 (1996-07-01), Dolan
patent: 5610554 (1997-03-01), Anvari
patent: 5619536 (1997-04-01), Gourgue
patent: 5627588 (1997-05-01), Edgar
patent: 5654862 (1997-08-01), Worley et al.
patent: 5666358 (1997-09-01), Paratore et al.
patent: 5710791 (1998-01-01), Royer et al.
patent: 5790514 (1998-08-01), Marchok et al.

Affiliated with

Also associated with

Rating

Digitally modulated CATV power measurement using undersampling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digitally modulated CATV power measurement using undersampling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digitally modulated CATV power measurement using undersampling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-736246