Patent
1995-10-31
1998-11-24
Harrell, Robert B.
G06F 1300
Patent
active
058419713
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to improvements in information transmission systems and, more particularly, to such systems where it is desired to transmit relatively wide bandwidth data such as compressed or real time video data.
BACKGROUND ART
Electronic storage technology has reached the stage where large volumes of information can be stored relatively cheaply and accessed from storage relatively quickly.
There remain, however, problems in transmitting the large volumes of information over communication channels or networks sufficiently quickly and sufficiently conveniently to be readily usable by the consumer.
It is an object of the present invention to address or substantially ameliorate this problem.
DISCLOSURE OF THE INVENTION
Accordingly in one broad form of the invention there is provided an information delivery system for transmission of information from a first location to a second location, said system including first information processing means at said second location, and a communication channel adapted to transmit said information between said first location and said second location.
The information may be stored in digital form or in analog form at the first location.
The information may be transmitted over the communications channel in digital form or in analog form.
Preferably, the first location comprises a storage location and includes a storage bank in which said information is stored and the second location comprises a utilization location and includes information output, display, presentation or playback means. The second location may also include a storage bank.
The communication channel may be implemented as a wide bandwidth data path by the establishment of a plurality of individual channels of predetermined bandwidth acting together to connect said first location to said second location whereby a bandwidth greater than the bandwidth of any one of said individual channels is available for transmission of said information.
The communication channel may comprise an apparent wide band channel by compression of said information prior to transmission over said channel.
The information is preferably transmitted over said communications channel in real time. The information may also be transmitted in compressed form in less than real time.
The first information processing means may include information storage means and information compression means and the data may be passed from said information storage means to said information compression means for compression of said data prior to return to said storage means. Preferably, the information is iteratively compressed by repeated, adaptive and selective invocation of said compression means.
The second information processing means may include information decompression means and data storage means. Preferably, such decompression means decompresses information prior to storage of said information in said storage means. The information may be iteratively decompressed by repeated adaptive and selective invocation of said decompression means, potentially involving repeated passage between said decompression means and said storage means.
The communication channel may include at least part of a PSTN, ISDN, cellular telephone network, cable, satellite, microwave or optical fibre.
Preferably, the second information processing means includes audio, text, graphical or video presentation, playback, output and display means whereby information comprising such data transmitted over said communication channel can be provided to a suer at said second location.
The display means may comprise a personal computer system, a television receiver, a video phone terminal or a hand-held mobile phone incorporating a video data display. Such a mobile phone may comprise a relatively high electromagnetic radiation emitting portion and a relatively low electromagnetic radiation emitting portion, the low radiation emitting portion being adapted for placement at or near the head of a user and in communication with the high electromagnetic rad
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patent: 5260989 (1993-11-01), Jenness et al.
patent: 5345599 (1994-09-01), Paulraj et al.
patent: 5611038 (1997-03-01), Shaw et al.
Longginou Lucas
Maeder Anthony
Harrell Robert B.
Voxson International Pty. Limited
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