# US 7,612,651 B2 · Communication system, communication method and program

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- Number: US 7,612,651 B2
- Document ID: US7612651B2
- Status: Granted
- Kind: B2
- Application number: 11/451,439
- Filed: 2006-06-13
- Published: 2007-01-04
- Granted: 2009-11-03
- Earliest claimed: 2005-06-14
- Assignees: Sony Corporation
- Inventors: Yoshihito Ishibashi; Susumu Kusakabe; Fumio Kubono
- Web page: https://patentgrep.com/patent/US7612651B2

## CPC

- G07C 9/28: the pass enabling tracking or indicating presence
- G07C 2009/00809: {with data transmission through the human body}
- G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE

## Abstract

A communication system for communicating with a communication terminal located on a communication medium. The system includes a plurality of communicators, disposed in contact with or in proximity to the communication medium, for communicating with the communication terminal via the communication medium, a detector for detecting reception levels of a signal transmitted from the communication terminal and received via the plurality of communicators, and an associator for associating the communication terminal with one of the plurality of communicators by comparing reception levels of the signal transmitted and received by each of the communicators.

## Claims

### Claim 1

A communication system for communicating with a communication terminal located on a communication medium comprising a person, comprising:
a plurality of communication means, disposed in contact with or in proximity to the communication medium, for communicating with the communication terminal via the communication medium, wherein each one of the plurality of communication means includes a plurality of sensors;
a detection means for detecting reception levels of a signal transmitted from the communication terminal and received via the plurality of communication means;
an association means for associating the communication terminal with one of the plurality of communication means by comparing reception levels of the signal transmitted from the communication terminal and received by each of the plurality of communication means; and
an identifying means for uniquely identifying the communication medium based on the received signal, wherein the association means further specifies the association with the identified communication medium based on the association means and the identifying means.

### Claim 2 (depends on 1)

The communication system according to claim 1, wherein the association means associates the communication terminal with the communication means that detects the strongest signal.

### Claim 3

A communication method for providing communication with a communication terminal located on a communication medium comprising a person, the method comprising:
detecting reception levels of a signal transmitted from the communication terminal and received by a plurality of communication means via the communication medium, wherein each one of the plurality of communication means includes a plurality of sensors and the plurality of communication means are disposed in contact with or in proximity to the communication medium;
associating the communication terminal with one of the plurality of communication means by comparing reception levels of the signal transmitted from the communication terminal and received by each of the plurality of communication means;
uniquely identifying the communication medium based on the received signal; and
specifying the association with the identified communication medium based on the associating and the identifying.

### Claim 4

A computer-readable recording medium storing a computer-executable program which, when executed by a processor, performs a method for providing communication with a communication terminal located on a communication medium comprising a person, the method comprising:
detecting reception levels of a signal transmitted from the communication terminal and received by a plurality of communication means via the communication medium, wherein each one of the plurality of communication means includes a plurality of sensors and the plurality of communication means are disposed in contact with or in proximity to the communication medium;
associating the communication terminal with one of the plurality of communication means by comparing reception levels of the signal transmitted from the communication terminal and received by each of the plurality of communication means;
uniquely identifying the communication medium based on the received signal; and
specifying the association with the identified communication medium based on the associating and the identifying.