Calibration of transmission system using tonal visualization components

• US 20080259083A1
• Filed: 04/21/2008
• Published: 10/23/2008
• Est. Priority Date: 04/20/2007
• Status: Active Grant

• Current Assignee: Master Key LLC
• Original Assignee: Master Key LLC
• Inventors: Lemons, Kenneth R.
• Granted Patent: US 8,018,459 B2
• Time in Patent Office: Days
• US Class Current: 345/440
• CPC Class Codes: G06T 11/206 Drawing of charts or graphs
• CPC Class Codes: G10G 1/00 Means for the representation of music
• CPC Class Codes: G10H 1/383 Chord detection and/or recognition, e.g. for correction, or automatic bass generation
• CPC Class Codes: G10H 1/44 Tuning means
• CPC Class Codes: G10H 2210/066 for pitch analysis as part of wider processing for musical purposes, e.g. transcription, musical performance evaluation; Pitch recognition, e.g. in polyphonic sounds; Estimation or use of missing fundamental
• CPC Class Codes: G10H 2220/005 Non-interactive screen display of musical or status data graphical user interfaces specifically adapted for electrophonic musical instruments G10H2220/091; fingering displays G10H2220/041
• CPC Class Codes: G10H 2250/031 Spectrum envelope processing

Abstract

The present disclosure relates to broadcast signal calibration devices and methods. A system is provided that permits calibration or tuning of broadcast signal transmission and reception equipment through the use of visual representation of test signals. The generated visualizations, incorporating color and shape, are examined to determine whether any adjustments to the broadcast equipment are needed to compensate for equipment age, deterioration, and the like.

Claims

1. A system for calibrating broadcast signal transmission equipment, comprising:

a processing device; and

a display,

wherein;

said processing device executes computer readable code to create a first visual representation of a first calibration signal for output on said display;

wherein;

said first visual representation is generated according to a method comprising the steps of;

(a) labeling the perimeter of a circle with a plurality of labels corresponding to a plurality of frequency bands, such that moving radially inward or outward from any one of said labels represents a change in a signal amplitude at the frequency corresponding to said one of first labels;

(b) identifying a first occurrence of a signal having a first amplitude at a first frequency; and

(c) graphically indicating a point along a radial axis corresponding to said first amplitude;

said radial axis connecting the center of said circle and said first label.