GPI trigger over TCP/IP for video acquisition

• US 20020175991A1
• Filed: 02/12/2002
• Published: 11/28/2002
• Est. Priority Date: 02/14/2001
• Status: Abandoned Application

• Current Assignee: Anystream, Inc. (Telestream Holdings Corp.)
• Original Assignee: Anystream, Inc. (Telestream Holdings Corp.)
• Inventors: Pflaum, Thomas, Eidus, Yuri
• Application Number:
  US10/076,872
• Publication Number:
  US 20020175991A1
• Time in Patent Office: Days
• US Class Current: 348/22
• CPC Class Codes: H04N 21/222 Secondary servers, e.g. proxy server, cable television Head-end provisioning of proxy services in data packet switching networks H04L67/56
• CPC Class Codes: H04N 21/234309 by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo conversion of standards in analog television systems H04N7/01
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/2381 Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/25808 Management of client data terminal profiles in network data switching protocols H04L67/303
• CPC Class Codes: H04N 21/2662 Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/64792 Controlling the complexity of the content stream, e.g. by dropping packets intermediate media network packet handling H04L65/765; proxy provisioning conversion or adaptation for reducing the amount or size of exchanged application data H04L67/5651; negotiation of resources in wireless networks H04W28/16
• CPC Class Codes: H04N 21/6582 Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number arrangements where receivers interact with the broadcast H04H20/38
• CPC Class Codes: H04N 21/8543 using a description language, e.g. Multimedia and Hypermedia information coding Expert Group [MHEG], eXtensible Markup Language [XML] information retrieval of semistructured data, the underlying structure being taken into account, e.g. mark-up language structure data G06F16/80

Abstract

A system for transmitting a trigger signal for a video capture system over a network, such as a TCP/IP network, which eliminates the need for special connections to be available in order to send triggers from an external device to start and stop the acquisition of video. Traditional video start/stop triggers are routed through a Trigger Converter which converts the trigger signal to a signal formatted for transmission over an existing network. A Trigger Receiver receives the formatted signal from the network and converts it to a trigger signal formatted for the trigger input of the video capture device. The video capture system responds to the trigger signal from the Trigger Receiver in the same way as it would have to the traditional trigger. Because the video capture device is already connected to the network, additional cables are not necessary.

Claims

1. A system for transmitting a trigger signal for a video capture system over a network, comprising:

a trigger converter that converts said trigger signal to a signal formatted for transmission over said network, and

a trigger receiver that receives said formatted signal from said network and converts it to a trigger signal formatted for the trigger input of said video capture system.