Patent US5987501A successfully refreshed from Google Patents.
US5987501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multimedia system having server for retrieving media data as indicated in the list provided by a client computer
Assignee: Avid Technology Inc
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Filing: 1998-07-14
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Granted: 1999-11-16
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Expires: 2018-07-14
Abstract
Abstract The problems of latency, flow control and data loss, and data movement within a client system memory are solved in a distributed multimedia system so as to enable real-time transmission of broadcast quality media data over the network. Latency is reduced by an estimation by the server of client needs. Data loss is prevented and flow control is provided by permitting the server to send only as much information as the network interface can reliably receive. Data movement is minimized by copying data directly from the network interface to memory in a display processor or audio processor.
Inventors
- 👤 James Hamilton
- 👤 Richard Hennessy
- 👤 Pong Choa
- 👤 Avinash Chopde
- 👤 Eric Peters
- 👤 Jay Koutavas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:40
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/16; H04N7/173; H04N7/17309; H04N7/17336; G; G06; G06F; G06F16/00; G06F16/10; G06F16/40; H04L; H04L47/00; H04L47/10; H04L47/24; H04L47/2416; H04L47/27; H04L47/30; H04L49/00; H04L49/90; H04L49/9036; H04L49/9063; H04L49/9068; H04L49/9073; H04L65/00; H04L65/60; H04L65/61; H04L65/612; H04L65/80; H04L67/00; H04L67/50; H04L67/56; H04L67/564; H04N21/00; H04N21/20; H04N21/23; H04N21/231; H04N21/23106; H04N21/232; H04N21/238; H04N21/40; H04N21/43; H04N21/442; H04N21/44209; H04N21/47; H04N21/472; H04N21/47202; H04N21/60; H04N21/65; H04N21/658; H04N21/6581; H04N21/6582; H04N21/80; H04N21/85; H04N21/854; H04N21/8549
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A distributed multimedia network system, comprising: a server computer having a disk on which media data is stored: a client computer having means for requesting media data from the server computer and means for providing to the server computer a list of media data which may be requested by the client; an optical media transport connecting the server computer to the client computer and communicating media data between the client computer and the server computer; and in the server, means for retrieving media data from the disk as indicated in the list provided by the client computer caching at the retrieved media data.
Claim 2
Dependent Claim
103 words
A distributed multimedia network system, comprising: a server computer having a disk on which media data is stored: a client computer having means for requesting media data from the server computer and means for providing to the server computer a list of media data which may be requested by the client; an optical media transport connecting the server computer to the client computer and communicating media data between the client computer and the server computer; and in the server, means for retrieving media data from the disk as indicated in the list provided by the client computer caching at the retrieved media data.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-11-15 | 2003-05-17 | 2003-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-15 | 2007-05-17 | 2007-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-15 | 2011-05-17 | 2011-11-16 | $7700.00 | Window Closed / Lapsed |