The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 1996
Filed:
May. 19, 1994
Young Dae Lee, Kyeongki-do, KR;
Sang Rae Lee, Kyeongki-do, KR;
Hyundai Electronics Ind., Kyeongki-do, KR;
Abstract
This invention relates to a network terminal apparatus in ISDN for connecting a two-wire U-interface on the switchboard side and a four-wire S-interface on the terminal side to each other. A network terminal apparatus disclosed for causing signals from the switchboard or the terminal to enable or disable the circuitries in the periphery of transmission/reception means of S- and U-interfaces, thus dispensing with use of a microprocessor and notifying the user of the status by LED display means. It comprise U-interface means connected to a switchboard for transmitting/receiving channel data 2B+D as a reference transmission rate, S-interface means connected to a terminal for transmitting/receiving channel data 2B+D, a status display for displaying activation status of the system, and electric supply means for supplying a regular and backup source, and reset means for performing a system resetting action.