Title:
TERRESTRIAL DIGITIAL MULTIMEDIA/TELEVISION BROADCASTING SYSTEM
Document Type and Number:
WIPO Patent Application WO2002017615
Kind Code:
A3
Abstract:
A system for transmitting information as frames in digital format between users on a network using a single frequency and TDMA and/or CDMA communications. Broadcasting, multicasting and unicasting are provided, and communications may be part of a downlink and/or an uplink signaling scheme that allows user-user (21) and user-central station (13) communication. A synchronization segment or pre-amble for a frame may include identification of the source and/or the intended recipient. Walsh, Haar, Rademacher coding of selected frame components, among others, can be incorporated. Reed Solomon encoding, signal interleaving and intra-leaving, trellis encoding and turbo encoding are used for error detection and correction. The system provide two-way communication with the Internet and/or with a cellular network and/or for smaller networks of users.
Inventors:
YANG LIN (US)
YANG ZHI-XING (CN)
YANG ZHI-XING (CN)
Application Number:
PCT/US2001/026565
Publication Date:
May 02, 2002
Filing Date:
August 23, 2001
Export Citation:
Assignee:
YANG LIN (US)
YANG ZHI XING (CN)
YANG ZHI XING (CN)
International Classes:
H03M13/15; H03M13/25; H03M13/29; H04H20/18; H04H20/67; H04L1/00; H04L27/26; H04N7/173; H04N7/24; H04N7/52; H04J11/00; (IPC1-7): H04B7/216; H04B7/212; H04J3/06
Foreign References:
| US4802192A | 1989-01-31 | |||
| US5862172A | 1999-01-19 | |||
| US5796444A | 1998-08-18 | |||
| US5815526A | 1998-09-29 |
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