TH24584EX - Method for determining the position of the cassette recorder. - Google Patents

Abstract

1. Methods for positioning in cassette recorders 2.1 The determination of the in and out mechanism of the tape wrapping is performed using a position switch. With its output signal coupled through a resistance circuit, in this operation, the difference between the voltage values for different positions is minimal, thus making the valuation unreliable. The task is to ensure reliability. This increases by eliminating the need for a highly accurate resistance or extremely stable voltage in the circuit. 2.2 The voltage value given to each position individually is measured at the circuit output during calibration operations. Was inserted into memory And is used as the desired value during normal operation. 2.3 Especially for cassette tape recorders for analog or numerical audio or video recording.

Claims (1)

1. Method for positioning in cassette recorders with in and out mechanism. With position switches (A, B) where the switch output signal (A, B) is connected through a resistance network (R1, R2, R3) whose output is connected to the input of the converter. Analog-to-digital (W) with its characteristics During a calibration operation, the pressure values were given individually to each position. Will be measured at the output of the resistance network circuit (R1, R2, R3), the corresponding digital value e