Jianxin J Liu

US Patent:

6724416, Apr 20, 2004

Filed:

Oct 1, 2002

Appl. No.:

10/263099

Inventors:

Jianxin Liu - Fremont CA 94536

International Classification:

H04N 714

US Classification:

348 1402, 348 1413, 348 1401

Abstract:

An Image Transceiving Telephone with Integrated Digital Camera (ITTDC) for simultaneous transceiving of real-time audio and non-real time image through a Public Switched Telephone Network (PSTN) is disclosed. The ITTDC includes an integrated telephone front end, a PSTN access device, an audio CODEC, an image input device, an image CODEC, an image display device, a local storage for an embedded system control software and associated control and operating parameters and data, an optional local electronic interface, a user-control and a system control including the embedded system control software. The control software further includes an audio sampling and processing means, an image capturing and processing means and a process priority control means allocating, via a real-time audio but non-real time image transfer protocol control, a highest priority to tasks for audio information processing whereas a lower priority to tasks for image information processing.