Invention Grant
- Patent Title: Radio corrected clock
- Patent Title (中): 无线电纠正时钟
-
Application No.: US10487996Application Date: 2002-09-10
-
Publication No.: US07408845B2Publication Date: 2008-08-05
- Inventor: Takashi Ihara , Masao Sakuyama , Akinari Takada , Masaaki Namekawa
- Applicant: Takashi Ihara , Masao Sakuyama , Akinari Takada , Masaaki Namekawa
- Applicant Address: JP Tokyo
- Assignee: Citizen Holdings Co., Ltd.
- Current Assignee: Citizen Holdings Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Dickstein Shapiro LLP
- Priority: JP2001-273057 20010910
- International Application: PCT/JP02/09188 WO 20020910
- International Announcement: WO03/023526 WO 20030320
- Main IPC: G04C11/02
- IPC: G04C11/02 ; H04L7/00

Abstract:
A radio correcting timepiece that can reduce the influence of a radio wave situation of the standard radio wave having time information according to an area, and can make a correction to the exact time in a shorter time is provided. The radio correcting timepiece comprises a signal receiving means (1) for receiving a standard radio wave and a timepiece means (2) for correcting and displaying time on the basis of the time information outputted from the signal receiving means. The signal receiving means (1) can receive plural standard radio waves and includes memory means (1I) which is able to store signal receiving order of the plural standard radio waves. Since the plural standard radio waves can be received, the influence of a radio wave situation according to an area can be reduced and a correction to the exact time can be made in a shorter time by using the standard radio wave transmitted every minute.
Public/Granted literature
- US20040202051A1 Radio corrected clock Public/Granted day:2004-10-14
Information query