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:
Nov. 07, 1995
Filed:
Sep. 20, 1993
Toshie Takahashi, Fukushima, JP;
Takashi Sato, Fukushima, JP;
Toshimi Kurumada, Fukushima, JP;
Yoshiyuki Kokubun, Fukushima, JP;
Hitachi Telecom Technologies, Ltd., Fukushima, JP;
Abstract
A trading telephone unit of a trading telephone system includes three display devices and control keys on the trading telephone unit. A first display device is provided at an upper left side of the unit having a function keyboard and a ten-key keyboard provided thereunder. On the right side of the unit, two display devices are provided in parallel with one of the two display devices being a second display device having, for example, twenty line selecting keys and a third display device having fifteen line selecting keys and four incoming line selecting keys, thereby enabling the unit to indicate thirty-five lines at once. The trading telephone includes pagenation memory having, for example, ten pages of memory with each page carrying thirty-five line names and dialing numbers. By user request, any one of the pages is called on the second and third display devices with the present page number being displayed on the third display device and on-hold line status information being displayed on the first display device.