Cordless telephone apparatus

• US 5,515,420 A
• Filed: 08/10/1995
• Issued: 05/07/1996
• Est. Priority Date: 11/29/1993
• Status: Expired due to Term

• Current Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation), Tottori Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Urasaka, Shinichi, Sakata, Takeharu
• Primary Examiner(s): Bost, Dwayne D.
• Application Number:
  US08/513,634
• Time in Patent Office: 271 Days
• Field of Search: 379/58, 379/61, 379/354
• US Class Current: 455/564
• CPC Class Codes: H04M 1/2746 Sorting, e.g. according to history or frequency of use
• CPC Class Codes: H04M 1/56 Arrangements for indicating or recording the called number at the calling subscriber's set
• CPC Class Codes: H04M 1/57 Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set at the operator set in a manual exchange H04M5/20
• CPC Class Codes: H04M 1/72505 Radio link set-up procedures

Abstract

In a cordless telephone apparatus including a base unit and a sub unit connected with each other by wireless, the base unit has a memory for storing therein telephone number data which are referred to from the sub unit. When the base unit is busy, the transfer of a calling signal between the sub and base units is not performed. The access from the sub unit to the memory of the base unit is always permitted. The memory includes a callers area in which the telephone numbers of callers of received calls and the reception times of the calls are stored and a directory area in which frequently called telephone numbers and the number of placing calls of the numbers are stored. The telephone numbers in the callers area are retrieved based on the reception times. The telephone numbers in the directory area are retrieved based on the numbers of placing calls. By adding the number of placing calls of the telephone number stored in the callers area to the number of placing calls of the telephone number stored in the directory area, the telephone number retrieval from the directory area functions correctly. Moreover, by using the cordless telephone apparatus as a terminal apparatus of a private telephone system, data stored in a main apparatus of the system are referred to from the sub unit of the terminal apparatus.

Claims

1. A cordless telephone apparatus including a base unit and a sub unit connected to the base unit by wireless, said base unit having dial operating means, said sub unit apparatus having a display,

wherein means for detecting that the sub unit is placed on the base unit is provided, and wherein when the dial operating means of the base unit is operated when the sub unit is placed on the base unit or within a predetermined period of time after the sub unit is lifted from the base unit, a dial number based on the dial operating means is displayed by the display of the sub unit.