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US6529528B1
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Multimedia multiplexing method
Assignee: Samsung Electronics Co Ltd
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Filing: 1997-06-27
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Granted: 2003-03-04
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Expires: 2017-06-27
Abstract
Abstract A multiplexing method for multimedia communication is provided, which is compatible with the H.223 protocol by changing a header of a multiplex protocol data unit (MUX-PDU). The multiplexing method includes the steps of encoding media data, and multiplexing the media data encoded in the step (a) in units of a predetermined frame, and inserting a second flag having a predetermined length with an auto-correlation into the frame after a first flag representing the opening and closing of the frame. Therefore, the probability of detecting the MUX-PDU by a receiver is increased by adding a flag having a high auto-correlation to the H.223 MUX-PDU frame, thereby increasing error-resiliency.
Inventors
- 👤 Dong-Seek Park
- 👤 John Villasenor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:09
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/06; H04J3/0602; H04J3/0605; H04J3/0611; H04L; H04L65/00; H04L65/1066; H04L65/1101; H04L65/1106; H04L65/60; H04L65/70; H04L9/00; H04L9/40; H04N; H04N19/00; H04N19/85; H04N19/89; H04N21/00; H04N21/20; H04N21/23; H04N21/238; H04N21/2383; H04N21/40; H04N21/43; H04N21/438; H04N21/4382; H04N7/00; H04N7/24; H04N7/52; H04L69/00; H04L69/30; H04L69/32; H04L69/322; H04L69/324; H04L7/00; H04L7/04; H04L7/041
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
60 words
A multiplexing method for multimedia communication using H.223 protocol, comprising the steps of: (a) encoding media data; and (b) multiplexing the media data encoded in the step (a) in units of a predetermined frame, and inserting a second flag having a pseudo noise characteristic into the frame immediately after a first flag indicating the opening or closing of the frame.
Claim 2
Dependent Claim
60 words
A multiplexing method for multimedia communication using H.223 protocol, comprising the steps of: (a) encoding media data; and (b) multiplexing the media data encoded in the step (a) in units of a predetermined frame, and inserting a second flag having a pseudo noise characteristic into the frame immediately after a first flag indicating the opening or closing of the frame.
Claim 3
Dependent Claim
25 words
The multiplexing method of claim 1 , wherein the frame further comprises: a header having data information; and a payload having video and audio data.
Claim 4
Dependent Claim
21 words
The multiplexing method of claim 1 , wherein the second flag of the step (b) has a bit pattern of “10110010”.
Claim 5
Dependent Claim
20 words
The multiplexing method of claim 1 , wherein the multiplexing of the step (b) is performed together with an interleaving.
Claim 6
Dependent Claim
35 words
The multiplexing method of claim 1 , wherein the second flag is inserted into the frame when a plurality of continuous first flags exist in the frame or when no payload exists in the frame.
Claim 7
Dependent Claim
68 words
A multiplexing method for multimedia communication using a low bit-rate coding protocol comprising the steps of: (a) encoding media data; and (b) multiplexing the media data encoded in step (a) in units of a predetermined frame, and converting an 8-bit sync code forming a flag indicating opening or closing of the frame into a 16-bit pseudo noise sync code to maintain compatibility with said low bit-rate coding protocol.
Claim 8
Dependent Claim
68 words
A multiplexing method for multimedia communication using a low bit-rate coding protocol comprising the steps of: (a) encoding media data; and (b) multiplexing the media data encoded in step (a) in units of a predetermined frame, and converting an 8-bit sync code forming a flag indicating opening or closing of the frame into a 16-bit pseudo noise sync code to maintain compatibility with said low bit-rate coding protocol.
Claim 9
Dependent Claim
24 words
The multiplexing method of claim 6 , wherein the 16-bit PN code in said step (b) has a pattern of “1110 0001 0100 1101”.
Claim 10
Dependent Claim
21 words
The multiplexing method for multimedia communication according to claim 1 , wherein said low bit-rate coding protocol comprises a H.223 protocol.
Claim 11
Dependent Claim
24 words
The multiplexing method of claim 8 , wherein the frame comprises: a header having data information; and a payload having video and audio data.
Claim 12
Dependent Claim
17 words
The multiplexing method of claim 8 , wherein the second flag has a bit pattern of 10110010.
Claim 13
Dependent Claim
21 words
The multiplexing method for multimedia communication according to claim 6 , wherein said low bit-rate coding protocol comprises a H.223 protocol.
Claim 14
Dependent Claim
23 words
The multiplexing method according to claim 11 , wherein the 16-bit psuedo noise code has a bit pattern of 0100 1101 1110 0001.
Claim 15
Dependent Claim
16 words
The method of claim 1 , wherein said second flag is different from said first flag.
Claim 16
Dependent Claim
16 words
The method of claim 6 , wherein said second flag is different from said first flag.
Claim 17
Dependent Claim
36 words
The method of claim 1 , wherein the second flag includes the same number of zero bits as the number of one bits, the second flag including at least one zero bit and one one bit.
Claim 18
Dependent Claim
38 words
The method of claim 6 , wherein the pseudo noise code includes the same number of zero bits as the number of one bits, the pseudo noise code including at least one zero bit and one one bit.
Claim 19
Dependent Claim
32 words
The method of claim 1 , wherein the first flag indicates the opening of the frame, and the second flag having a pseudo noise characteristic is inserted immediately after the first flag.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-03-03 | 2006-09-02 | 2007-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-03-03 | 2010-09-02 | 2011-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-03-03 | 2014-09-02 | 2015-03-04 | $7700.00 | Window Closed / Lapsed |