Lester Tucker Matzek

US Patent:

55330550, Jul 2, 1996

Filed:

Jun 1, 1995

Appl. No.:

8/456329

Inventors:

Lester T. Matzek - Lombard IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04L 2508
H04B 1500

US Classification:

375286

Abstract:

An apparatus for measuring carrier to interference ratio for a digital signal receives (101) a digital signal. The digital signal is sampled (113), producing a sampled digital signal. Variations of at least one level of the sampled digital signal are detected (123), producing carrier to interference ratio.

US Patent:

45062374, Mar 19, 1985

Filed:

Nov 30, 1982

Appl. No.:

6/445612

Inventors:

Lester T. Matzek - Lombard IL

Assignee:

Rockwell International Corporation - El Segundo CA

International Classification:

H04B 314
H03H 703

US Classification:

333 28R

Abstract:

An adjustable slope equalizer is disclosed for maintaining a predetermined output level at a predetermined frequency. An equalizer comprises: an adjustable input means; a first voltage divider means having an output and having an input operatively connected to the low impedance input means; a second voltage divider means having an output and having an input operatively connected to the low impedance input means; an adjustable high impedance means having an output and having at least two inputs operatively connected to the outputs of the first and second voltage divider means; and a SAG correction means operatively connected to the output of the adjustable high impedance means. The output of the SAG correction means has the predetermined output level at the predetermined frequency for any setting of the adjustable high impedance means.