| US 7,551,704 B2 | ||
| Information processing apparatus and data communication method | ||
| Hiroyuki Oda, Hyogo (Japan); Yojiro Kamise, Hyogo (Japan); Hisakazu Yanagiuchi, Hyogo (Japan); Takayuki Ohnishi, Hyogo (Japan); Yuji Morimiya, Chiba (Japan); Kazuyoshi Takemura, Tokyo (Japan); and Kenji Nakada, Kanagawa (Japan) | ||
| Assigned to Sony Corporation, (Japan) | ||
| Filed on Sep. 11, 2007, as Appl. No. 11/898,240. | ||
| Application 11/898240 is a continuation of application No. 11/312710, filed on Dec. 21, 2005, granted, now 7,333,583, filed on Feb. 19, 2008. | ||
| Application 11/312710 is a continuation of application No. 10/024179, filed on Dec. 21, 2001, granted, now 7,050,526. | ||
| Claims priority of application No. 2000-396912 (JP), filed on Dec. 25, 2000. | ||
| Prior Publication US 2008/0052419 A1, Feb. 28, 2008 | ||
| Int. Cl. H04L 23/00 (2006.01) | ||
| U.S. Cl. 375—377 [340/5.41; 340/5.65] | 4 Claims |
| 3. A data communication method for accessing information on a portable storage device, comprising the steps of:
polling the portable storage device;
receiving a response from the portable storage device;
authenticating the portable storage device based on the response;
updating information on the portable storage device;
checking the status of communication with the portable storage device; and
activating a plurality of light emitting diodes for a predetermined period based on the checked status, wherein blue light
emitting diodes are activated to indicate a proper placement position when the portable storage device is polled;
wherein the plurality of light emitting diodes are arranged in a symmetric pattern corresponding to four corners of the portable
storage device indicating the proper placement position for positioning the portable storage device to initiate communications
with the portable storage device.
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