Title:
DRIVER CIRCUIT AND DATA COMMUNICATION DEVICE
Document Type and Number:
Japanese Patent JP3558618
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a driver circuit that can be used in communication employing an optical cable and communication employing an electric cable.
SOLUTION: The driver circuit includes: a drive section for generating a differential signal according to an input signal and outputting the signal to an electric cable or an optical transceiver; and a control section receiving a selection signal based on which the drive section selects to drive the electric cable or the optical transceiver, an identification signal, and a data signal, for generating a signal based on the received signals and outputting the generated signal to the drive section. During a period indicated by the identification signal, the control section controls the drive section to put the output of the drive section of high impedance when the selection signal indicates selection of the electric cable, or output a predetermined differential signal, not putting the output in high impedance, when the selection signal indicates selection of the optical transceiver.
Inventors:
Takeshi Ebuchi
Application Number:
JP2002021824A
Publication Date:
August 25, 2004
Filing Date:
January 30, 2002
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04L25/02; H04B10/40; H04B10/50; H04B10/60; (IPC1-7): H04L25/02; H04B10/04; H04B10/06; H04B10/14; H04B10/26; H04B10/28
Domestic Patent References:
| JP2000201063A | ||||
| JP55110966A |
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Koyama
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Teshima Masaru
Atsushi Fujita
Hiroshi Koyama
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Teshima Masaru
Atsushi Fujita
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