Method of controlling connection between nodes in digital interface

• US 7,899,021 B2
• Filed: 08/03/2007
• Issued: 03/01/2011
• Est. Priority Date: 08/23/1999
• Status: Expired due to Term

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jang, Chang Hwan, Jeong, Jae Yoon
• Primary Examiner(s): PHAN, MAN U
• Application Number:
  US11/833,540
• Publication Number:
  US 20070291726A1
• Time in Patent Office: 1,306 Days
• Field of Search: 370236-341, 370357-389, 370392-419, 709238-244, 710 5- 16, 710301-315
• US Class Current: 370/341
• CPC Class Codes: H04L 12/40058 Isochronous transmission
• CPC Class Codes: H04L 12/40065 Bandwidth and channel allocation home automation networks H04L12/2803; flow control H04L47/10
• CPC Class Codes: H04L 41/0823 characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability for optimising operational conditions of wireless networks H04W24/02
• CPC Class Codes: H04L 45/74 Address processing for routing
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04N 21/4108 characterised by an identification number or address, e.g. local network address protecting specific internal or external computer components using identification number G06F21/73; network arrangements, protocols or services for addressing or naming H04L61/00
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/43632 involving a wired protocol, e.g. IEEE 1394 high-speed IEEE 1394 serial bus H04L12/40052
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/19 Connection re-establishment
• CPC Class Codes: H04W 76/30 Connection release
• CPC Class Codes: H04W 76/34 Selective release of ongoing connections

Abstract

A method of controlling connection between nodes in a digital interface whereby a first node that is a master node determines a second node to be the master and controls a point-to-point connection or a broadcast connection to another node. The first node having the display device determines the second node to be the master in accordance with a user selection, and transmits a connection command of a predetermined format for transmitting a data stream to the second node. The second node determined as the master in accordance with the transmitted connection command of the predetermined format is allocated with a channel and a bandwidth from an isochronous resource manager (IRM), and performs a point-to-point connection between the second node and the first node to transit the data stream. Thus, the transmission/reception, reproduction, and control of the data stream of the program can be smoothly performed.

Claims

1. A method for controlling a connection through a serial bus, comprising:

transmitting a control command that identifies a destination node and describes a requested state of the connection, to the destination node, wherein the requested state of connection indicates whether the destination node is operated to be connected or disconnected with the serial bus; and

receiving, based on transmitting the control command, a response command describing a current state of the connection, from the destination node, wherein the response command includes identification information of a source node.

2. The method of claim 1,

wherein the control command is transmitted from the source node, and

wherein the response command is received at the source node.

3. The method of claim 1, wherein the control command identifies the destination node using a unique node identifier.

4. The method of claim 3, wherein the unique node identifier is a unique physical node identifier.

5. The method of claim 1, wherein the requested connection state comprises an enabled port connection state, a disabled port connection state, a connected connection state, or a disconnected connection state.

6. The method of claim 1, wherein the control command or the response command comprise preformatted commands.

7. The method of claim 1, wherein the destination node is a digital versatile disc (DVD) player, a digital television (DTV), or a set-top box (STB).

8. A device for controlling a connection through a serial bus, comprising:

means for transmitting a control command that identifies a destination node and describes a requested state of the connection, to the destination node, wherein the requested state of connection indicates whether the destination node is operated to be connected or disconnected with the serial bus; and

means for receiving, based on transmitting the control command, a response command describing a current state of the connection, from the destination node, wherein the response command includes identification information of a source node.

9. A device for controlling a connection through a serial bus, comprising a master plug register configured to:

transmit a control command that identifies a destination node and describes a requested state of the connection, to the destination node, wherein the requested state of connection indicates whether the destination node is operated to be connected or disconnected with the serial bus; and

receive, based on transmitting the control command, a response command describing a current state of the connection, from the destination nod, wherein the response command includes identification information of a source node.

10. The device of claim 9,

wherein the control command is transmitted from the source node, and

wherein the response command is received at the source node.

11. The device of claim 9, wherein the control command identifies the destination node using a unique node identifier.

12. The device of claim 11, wherein the unique node identifier is a unique physical node identifier.

13. The device of claim 9, wherein the requested connection state comprises an enabled port connection state, a disabled port connection state, a connected connection state, or a disconnected connection state.

14. The device of claim 9, wherein the control command or the response command comprise preformatted commands.

15. The device of claim 9, wherein the destination node is a digital versatile disc (DVD) player, a digital television (DTV), or a set-top box (STB).