ANALOG VIDEO SIGNAL TRANSMISSION DEVICE

• US 20120320276A1
• Filed: 03/13/2012
• Published: 12/20/2012
• Est. Priority Date: 06/20/2011
• Status: Abandoned Application

• Current Assignee: Quanta Storage Incorporated (AUO Corp.)
• Original Assignee: Quanta Storage Incorporated (AUO Corp.)
• Inventors: Lin, Wen-Jing, Hu, Chi-Hwei
• Application Number:
  US13/418,350
• Publication Number:
  US 20120320276A1
• Time in Patent Office: Days
• US Class Current: 348/723
• CPC Class Codes: H04N 5/38 Transmitter circuitry for the transmission of television signals according to analogue transmission standards H04N5/14 takes precedence

Abstract

An analog video signal transmission device includes an output unit and a receiving unit. One end of an output circuit of the output unit connects to a ground circuit, and another end outputs an analog video voltage signal to a current converter in order to convert the analog video voltage signal to a proportional analog video current signal as an output signal. A receiving unit uses a receiving circuit to receive the analog video current signal and convert it to a received analog video voltage signal. The ground circuit is a signal transmission circuit connected from a node to the receiving circuit via an impedance, and for removing ground noises.

Claims

1. An analog video signal transmission device, comprising:

an output unit, having an output circuit, one end of the output circuit connected to a ground circuit, and another end outputting an analog video voltage signal to a current converter in order to convert the analog video voltage signal to an analog video current signal as an output signal; and

a receiving unit, using a receiving circuit to receive the analog video current signal and convert it to a received analog video voltage signal;

wherein the ground circuit is a signal transmission circuit connected from a node to the receiving circuit via an impedance.

2. The analog video signal transmission device of claim 1, wherein the output unit is a video device for outputting analog signals.

3. The analog video signal transmission device of claim 1, wherein the receiving unit is a display device for receiving analog signals.

4. The analog video signal transmission device of claim 1, wherein the current converter converts the analog video voltage signal to a proportional analog video current signal.

5. The analog video signal transmission device of claim 1, wherein the analog video current signal received by the receiving circuit is a voltage difference between the signal transmission circuit and the node.