Title:
DIGITAL DATA INTERFACE DEVICE MESSAGE FORMAT
Document Type and Number:
WIPO Patent Application WO2006058173
Kind Code:
A3
Abstract:
The present invention provides a digital data interface device message format (Fig. 7) that describes command and response messages to be exchanged between a digital device having a system controller and a digital data interface device. The digital data interface includes a message interpreter, content module and a control module. The digital data interface device may include an MDDI link controller. The digital data interface device can be used by a cellular telephone to control a peripheral device such as a camera, bar code reader, image scanner, audio device or other sensor. The digital data interface device message format includes a transaction identification field (710), a count field (720), a command identification field (730) and a status field (740). Optionally, the message format can include a data field (750). When an MDDI link is used, a digital data interface device message can be included in an MDDI register access packet.
Inventors:
KATIBIAN BEHNAM (US)
WILEY GEORGE A (US)
WILEY GEORGE A (US)
Application Number:
PCT/US2005/042643
Publication Date:
December 14, 2006
Filing Date:
November 23, 2005
Export Citation:
Assignee:
QUALCOMM INC (US)
KATIBIAN BEHNAM (US)
WILEY GEORGE A (US)
KATIBIAN BEHNAM (US)
WILEY GEORGE A (US)
International Classes:
H04J3/24
Foreign References:
| US20050216421A1 | 2005-09-29 | |||
| US5867501A | 1999-02-02 |
Other References:
See also references of EP 1825623A4
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