Invention Grant
- Patent Title: Positional information transmission system, positional information transmitter, and positional information transmitting method
-
Application No.: US14608323Application Date: 2015-01-29
-
Publication No.: US09960858B2Publication Date: 2018-05-01
- Inventor: Michiaki Shinotsuka , Tsutomu Kawase
- Applicant: Michiaki Shinotsuka , Tsutomu Kawase
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2014-016426 20140131; JP2014-154655 20140730
- Main IPC: G01S5/00
- IPC: G01S5/00 ; H04B11/00 ; G01S1/72 ; G01S5/18
Abstract:
A novel positional information transmission system includes a plurality of positional information transmission units. The positional information transmission unit includes a close-range wireless communication unit that performs close-range wireless communication and a sonic wave transmission unit that transmits positional information as a sonic signal used for detecting a position of a receiver that receives the sonic signal based on information transmitted by the close-range wireless communication unit.
Public/Granted literature
Information query
