IP Library › Granted Patent US 8,626,202
Granted Patent B2
US 8,626,202 · App. 13/432,402 · Granted Jan 7, 2014

Information processing apparatus, correction method, and recording medium

Inventors: Shinichi Shiotsu (Kawasaki, JP); Hiroyasu Sugano (Kita, JP); Hideki Tanaka (Kawasaki, JP); Daisuke Yamashita (Kawasaki, JP); Koichi Yokota (Yokohama, JP); Akira Itasaki (Yokohama, JP)
Assignee: Fujitsu Limited
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Quick Facts
Patent No.
US 8,626,202
App. No.
13/432,402
Granted
Jan 7, 2014
Kind
B2
Abstract

An information processing apparatus that conducts positioning on the basis of received signal strength indications obtained from access points, includes, a contact information detector that detects contact information between the information processing apparatus and a dielectric body, a recording module that stores a gain table including gain data corresponding to obtained contact information, a gain data correcting unit that extracts the gain data corresponding to the contact information obtained by the contact information detector from the gain table of the recording module and corrects gain by using the extracted gain data, and a positioning module that conducts the positioning by using the gain obtained by the correcting unit and the received signal strength indications.

Claims (36)

1. An information processing apparatus that conducts positioning on the basis of received signal strength indications obtained from access points, comprising:

a contact information detector that detects contact information between the information processing apparatus and a dielectric body;

a recording module that stores a gain table including gain data corresponding to obtained contact information;

a gain data correcting unit that extracts the gain data corresponding to the contact information obtained by the contact information detector from the gain table of the recording module and corrects gain by using the extracted gain data; and

a positioning module that conducts the positioning by using the gain obtained by the correcting unit and the received signal strength indications.

2. The information processing apparatus according to claim 1 , wherein the gain data includes receiving antenna gain data.

3. The information processing apparatus according to claim 2 , wherein the contact information detector includes a capacitive sensor that measure capacitance from the dielectric body.

4. The information processing apparatus according to claim 3 , further comprising:

a contact level determiner that determines a contact level with the dielectric body on the basis of the capacitance obtained by the capacitive sensor.

5. The information processing apparatus according to claim 4 , wherein the gain table includes receiving antenna gain data associated with the contact level.

6. The information processing apparatus according to claim 5 , wherein the capacitive sensor is plurally provided at different positions.

7. The information processing apparatus according to claim 6 , further comprising:

a contact surface determiner that determines a surface of contact with the dielectric body from differences in the capacitance magnitudes obtained by a plurality of the capacitive sensors.

8. The information processing apparatus according to claim 7 , wherein

the gain table includes receiving antenna gain data associated with the contact level and the contact surface.

9. The information processing apparatus according to claim 8 , further comprising:

an orientation detector that detects information on the orientation of the information processing apparatus.

10. The information processing apparatus according to claim 9 , wherein

the gain table includes receiving antenna gain data associated with the contact level, the contact surface, and the orientation information.

11. The information processing apparatus according to claim 4 , wherein the capacitive sensor is plurally provided at different positions.

12. The information processing apparatus according to claim 11 , further comprising:

a contact surface determiner that determines a surface of contact with the dielectric body from differences in the capacitance magnitudes obtained by a plurality of the capacitive sensors.

13. The information processing apparatus according to claim 12 , wherein the gain table includes receiving antenna gain data associated with the contact level and the contact surface.

14. The information processing apparatus according to claim 13 , further comprising:

an orientation detector that detects information on the orientation of the information processing apparatus.

15. The information processing apparatus according to claim 14 , wherein the gain table includes receiving antenna gain data associated with the contact level, the contact surface, and the orientation information.

16. A correction method comprising:

detecting contact information between the information processing apparatus and a dielectric body;

storing a gain table including gain data corresponding to obtained contact information;

extracting the gain data corresponding to the contact information obtained by the contact information detector from the gain table of the recording module and corrects gain by using the extracted gain data; and

conducting the positioning by using the gain obtained by the correcting unit and the received signal strength indications.

17. A non-transitory recording medium having recorded thereon a computer-readable correction program causing a computer to execute processing comprising:

detecting contact information between the information processing apparatus and a dielectric body;

storing a gain table including gain data corresponding to obtained contact information;

extracting the gain data corresponding to the contact information obtained by the contact information detector from the gain table of the recording module and corrects gain by using the extracted gain data; and

conducting the positioning by using the gain obtained by the correcting unit and the received signal strength indications.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 11, 2012
From: SHIOTSU, SHINICHI; SUGANO, HIROYASU; TANAKA, HIDEKI; YAMASHITA, DAISUKE; YOKOTA, KOICHI; ITASAKI, AKIRA
To: FUJITSU LIMITED
Reel/Frame 028415/0173 →
Priority Claims (1)
JP 2011-076195 · Mar 30, 2011 · national
Continuity (1)
Related Publication 20120252502A1 · Oct 4, 2012