Title:
IMPEDANCE MATCHING CIRCUIT AND DISPLAY DEVICE PROVIDED WITH THE CIRCUIT
Document Type and Number:
Japanese Patent JP3227411
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make a signal in a broad band high frequency range stable by compensating attenuation of a signal by an RC time constant of a signal cable in the case of sending a voltage received through the signal cable to a video amplifier circuit.
SOLUTION: The impedance matching circuits 101, 102, 103 have a 1st resistor RO connecting to a video input section, a capacitor C connecting in series with the 1st resistor and connecting to a video amplifier section, and at least one of 2nd resistors R1, R2, R3 connected in series between a connecting point of the 1st resistor and the capacitor C and ground. Thus, attenuation of a video signal with a high frequency over 200MHz sent to the signal cable is compensated.
Inventors:
Sinking
Application Number:
JP23176797A
Publication Date:
November 12, 2001
Filing Date:
August 13, 1997
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
H04N5/14; G09G1/16; G09G5/00; G09G5/04; H03H7/38; H04N9/64; H04N9/72; H04N5/68; (IPC1-7): H04N5/14; G09G5/00; G09G5/04; H03H7/38
Domestic Patent References:
| JP3126419A | ||||
| JP4126419U | ||||
| JP377997U |
Attorney, Agent or Firm:
Miaki Kametani (2 outside)