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System and a method of operation thereof for analyzing the performance of a tape recorder

a tape recorder and performance analysis technology, applied in the field of verification system and method of operation thereof, can solve the problems of cumbersome and time-consuming task of handling the involved equipmen

Inactive Publication Date: 2006-02-07
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]It is a primary object of the present invention to provide a system, and a method of operation thereof, that automatically verifies the operational readiness and performance of a tape recorder without the need of cumbersome test equipment and without the need of a skilled technician.
[0009]It is a further object of the present invention to provide a system, and a method of operation thereof, that adjusts the bias and equalization levels of a tape recorder to assure proper performance thereof.
[0011]It is another object of the present invention to provide for signal processing techniques that employs Fast Fourier Transforms (FFT) so that the complex signals may be broken down into elementary components thereof to ease the analysis task needed to determine the proper performance for the tape recorder.SUMMARY OF THE INVENTION

Problems solved by technology

The handling of the involved equipment becomes a cumbersome and time consuming task, especially on board the aircraft having cramped quarters.

Method used

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  • System and a method of operation thereof for analyzing the performance of a tape recorder

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Embodiment Construction

[0021]Referring to the drawings, FIG. 1 illustrates that the system 10 of the present invention includes an operator's panel 12. The system 10 analyzes the performance of the tape recorder having a record input and a playback head providing an output thereof. The tape recorder, in one embodiment, also further comprises means responsive to digital quantities for adjusting the bias and equalization levels of the tape recorder. The tape recorder sometimes undesirably experiences so called “tape dropout conditions” and “dirty heads,” with the tape dropout conditions being caused by variation in the signal level of the reproduced tape-recorded data resulting in errors in data reproductions, and with the dirty heads being caused by contaminates that disadvantageously prevent the delivery or pick-up of recorded impulses. The tape dropout conditions are commonly manifested by blanking conditions representative of obscuring or momentary elimination of the desired recorded signal.

[0022]The op...

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Abstract

A system, and a method of operation thereof, for analyzing the performance of a tape recorder having a playback head is disclosed. The system allows for the recorded data of the tape recorder to be routed to a analog-to-digital converter whose output is delivered to a digital signal processor preferably having a routine to convert the digital data to an FFT data stream which, in turn, is routed to a microprocessor. The computer analyzes the FFT data and provides digital signals to external display devices that indicate the proper recording of the tape recorder, the need for the recorder's heads to be cleaned, the occurrence of excessive dropout data recording rate, or the need to manually or automatically adjust the bias and equalization levels of the tape recorder.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation application of U.S. patent application Ser. No. 09 / 100,701 filed Jun. 19, 1998.BACKGROUND OF THE INVENTION[0002]1.0 Field of the Invention[0003]The present invention relates to a verification system, and method of operation thereof, for verifying the operational performance of a tape recorder and, more particularly, to a system that employs digital techniques to automatically verify the operational performance of the tape recorder, with special attention being given to detecting tape recording dropout occurrences and unclean read / write (playback) heads.[0004]2.0 Description of the Prior Art[0005]A tape recorder comprises read / write (play or playback) heads for reading / writing, by means of an analog process, data onto a tape. The tape recorder is typically responsive to bias and equalization levels. The data recorded onto a tape recorder may be of a critical nature, especially if the tape recorder is used...

Claims

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Application Information

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IPC IPC(8): G11B27/36G11B5/008G11B5/41G11B20/10G11B27/34G11B33/10
CPCG11B20/10G11B5/00813G11B5/41G11B27/34G11B27/36G11B33/10G11B2220/90
Inventor PROCKUP, KENNETH M.
Owner THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
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