Communication system, communication method, and data processing apparatus
US8200153B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2007 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2029 |
Classification
- Technology area (CPC —)General
Abstract
A communication system performs, by first and second data processing apparatuses, an electromagnetic-induction communication using a carrier having a single frequency. A transfer rate for use between the first and second data processing apparatuses is changeable in one transaction. The first data processing apparatus determines whether a transfer rate can be changed based on data transmitted from the second data processing apparatus. When the first data processing apparatus determines that the transfer rate can be changed, the first data processing apparatus transmits to the second data processing apparatus a request to change the transfer rate to one of a plurality of transfer rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.