Signal converting circuit

Details Signal converting circuit Signal converting circuit

2007-10-30

2007-10-30

Tra, Quan (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C326S062000

Reexamination Certificate

active

11312726

ABSTRACT:
A signal converting circuit includes a voltage level converter circuit, a power circuit, a signal separation circuit, a signal modifying circuit, and a clamping circuit. The power circuit provides voltage to the signal modifying circuit and the voltage level converter circuit. The voltage level converter circuit converts signals from the RS232 interface to I2C interface compliant signals. When the I2C interface transmits signal to the RS232 interface, the signal separation circuit separates signal from the RS232 interface into two separate signals. The signal modifying circuit receives controlling signals sent from the RS232 interface and modifies the signals into a standard square wave signal, the modified standard square wave signal is sent to the clamping circuit. The clamping circuit clamps the voltage level of the signal according to the level that the I2C interface accepts.

REFERENCES:
patent: 4456838 (1984-06-01), Taguchi et al.
patent: 6452419 (2002-09-01), Ovens
patent: 6738855 (2004-05-01), Goldman
patent: 7091747 (2006-08-01), Hsieh
patent: 2004/0022204 (2004-02-01), Trembley
patent: 2006/0033548 (2006-02-01), Hsieh

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