US 6,724,416 B1 · Image transceiving telephone with integrated digital camera

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.

An Image Transceiving Telephone with Integrated Digital Camera (ITTDC) for simultaneous transmission and receiving (transceiving) of real-time audio and non-real time image through a Public Switched Telephone Network (PSTN), the ITTDC comprising:

an integrated telephone front end further comprising:
an audio input means for converting an input audio from a user of said ITTDC into an uncompressed digital inbound audio data stream and
an audio playback means for converting said uncompressed digital receiving audio data stream into a corresponding audible sound for the user of said ITTDC;
an audio CODEC (compression and decompression) for concurrently compressing said uncompressed digital inbound audio data stream into a compressed digital outbound audio data stream and concurrently decompressing a compressed digital inbound audio data stream into an uncompressed digital receiving audio data stream;
an image input means for capturing and converting an image into an uncompressed digital inbound image data frame;
an image CODEC for concurrently compressing said uncompressed digital inbound image data frame into a compressed digital outbound image data frame and concurrently decompressing a compressed digital inbound image data frame into an uncompressed digital receiving image data frame;
an image display means for converting said uncompressed digital receiving image data frame into a corresponding visible image display for the user of said ITTDC;
a PSTN access means for concurrently converting a digital outbound data stream into a suitable analog signal waveform for reliable transmission through said PSTN and concurrently converting an analog inbound signal waveform from said PSTN into a corresponding digital inbound data stream wherein said PSTN access means is further provided with an operating data rate of communication (“DRPS”) for communicating with all other associated communication parameters between a user of said ITTDC and said user's communication partner and wherein said PSTN access means is further coordinating with said audio CODEC having a number of selectable audio compression plans to select a corresponding number of graduations of audio quality, each with its associated data rate of communication for said audio CODEC (DRAD), such that the DRAD is less than or equal to said DRPS between a user of said ITTDC and a communication partner of said user through said PSTN;
a local data read and write means for storing an embedded system control software with associated control data, permanent ITTDC operating parameters as well as temporarily or permanently storing said compressed digital outbound audio data stream, said compressed digital inbound audio data stream, said compressed digital outbound image data frame and said compressed digital inbound image data frame;
an optional electronic interface means for communication with other electronic devices locally attached to the ITTDC;
a user-control means for accepting user controls of the ITTDC directing its operations;
a system control means for interfacing with and further controlling said integrated telephone front end, said audio CODEC, said image input means, said image CODEC, said image display means, said PSTN access means, said local data read and write means, said optional electronic interface means and said user-control means to perform a plurality of desirable functions with respect to said simultaneous transmission and receiving (transceiving) of real-time audio and non-real time image;
and
wherein said audio compression plans come from a set of industry standards selected from the group consisting of the following plans:
Audio format Data Rate Compression Ratio Audio Quality 16-bit PCM 128 Kbps 1:1 Best (Raw Data) G.711 64 Kbps 1:2 Better G.728 16 Kbps 1:8 Good G.723.1 6.3/5.3 Kbps 1:20/1:24 Normal GSM 06.10 13.2 Kbps 1:9.7 Normal.

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Image transceiving telephone with integrated digital camera

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Image transceiving telephone with integrated digital camera

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Abstract

Claims3