Apparatus and method for automatically adjusting recording speed

Details Apparatus and method for automatically adjusting recording speed Apparatus and method for automatically adjusting recording speed

1992-03-10

1994-05-24

Look, Edward K.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 7308, 358335, G11B 1546

Patent

active

053154525

ABSTRACT:
An apparatus and a method for automatically adjusting the recording speed of a recorder, such as a video cassette recorder (VCR) are provided, wherein the recording speed is automatically changed by comparing the remaining length of a recording medium such as a tape with the remaining recording time of a program, thereby enabling the program to be recorded without interruption. The apparatus includes a reel rotation sensing device for sensing the states of a take-up reel and a supply reel, data input device for inputting data and setting a mode, a memory for storing the data input from the data input device, a system-control microcomputer for calculating a remaining tape length in accordance with the output signal from the reel rotation sensing device, and outputting a signal for controlling the tape's recording mode by comparing the remaining tape length with the data recorded in the memory, and a servo microcomputer for driving motors in accordance with the control signal from the system-control microcomputer.

REFERENCES:
patent: 4641205 (1987-02-01), Beyers, Jr.
patent: 4931877 (1990-06-01), Gebhard et al.
patent: 5117316 (1992-05-01), Kim

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