VIDEO TRANSMISSION TERMINAL, VIDEO TRANSMISSION METHOD, VIDEO TRANSMISSION PROGRAM, AND VIDEO TRANSFER SYSTEM

• US 20150288988A1
• Filed: 10/22/2013
• Published: 10/08/2015
• Est. Priority Date: 11/07/2012
• Status: Abandoned Application

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: OOl, Kenji
• Application Number:
  US14/437,531
• Publication Number:
  US 20150288988A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04N 21/2187 Live feed
• CPC Class Codes: H04N 21/2223 being a public access point, e.g. for downloading to or uploading from clients arrangements specially adapted to plural spots in a confined site in broadcast systems H04H20/63
• CPC Class Codes: H04N 21/2385 Channel allocation H04N21/266 takes precedence; Bandwidth allocation H04N21/24 takes precedence ; allocation of channels according to the instantaneous demands of the users in time-division multiplex systems H04J3/1682; admission control, resource allocation in open networks H04L12/5692; arrangements for maintenance or administration in data switching networks involving bandwidth and capacity management H04L41/0896; negotiating bandwidth in wireless networks H04W28/16
• CPC Class Codes: H04N 21/4223 Cameras H04N23/00 takes precedence
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 7/181 for receiving images from a plurality of remote sources
• CPC Class Codes: H04N 7/185 from a mobile camera, e.g. for remote control
• CPC Class Codes: H04W 36/0085 Hand-off measurements
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

To alleviate deterioration in a video associated with the search for access points in a video transfer system for transferring the video in real time. A video transmission terminal of a video transfer system includes a transmission/reception unit that transmits video data to a video receiving device via any of a plurality of access points, and a handover processing unit that scans the plurality of access points to be scanned for handover, the scan being segmented into a plurality of times of scans. The transmission/reception unit is configured not to transmit at least some of frames of the video data to be transmitted during the segmented scan.

Claims

1. A video transmission terminal comprising:

a transmission unit configured to transmit video data to a video receiving device via any of a plurality of access points; and

a handover processing unit configured to scan the access points for handover,

wherein the transmission unit is configured not to transmit at least some of frames of the video data to be transmitted during the scan.

2. The video transmission terminal according to claim 1,

wherein the handover processing unit scans the access points, the scan being segmented into a plurality of times of scans.

3. The video transmission terminal according to claim 1,

wherein the frame of the video data that is not to be transmitted is a frame immediately before an intra-frame coding frame.

4. The video transmission terminal according to claim 1, configured to transmit an advance notice of the scan to the video receiving device before performing the scan.

8. The video transmission terminal according claim 2, configured to transmit an advance notice of the scan to the video receiving device before performing the scan.

9. The video transmission terminal according claim 3, configured to transmit an advance notice of the scan to the video receiving device before performing the scan.

5. A tangible computer readable storage medium encoded with an executable computer program for transmitting video and that, when executed by a processor, causes the processor to perform operations comprising:

transmitting video data to a video receiving device via any of a plurality of access points; and

scanning the access points for handover,

wherein, at least some of frames of the video data to be transmitted during the scan is not transmitted.

6. A video transmission method comprising:

a transmission step of transmitting video data to a video receiving device via any of a plurality of access points; and

a handover processing step of scanning the access points for handover,

wherein in the transmission step, at least some of frames of the video data to be transmitted during the scan is not transmitted

7. A video transfer system comprising:

a video transmission terminal; and

a video receiving device,

the video transfer system being configured to transfer video data from the video transmission terminal to the video receiving device,

wherein the video transmission terminal includes;

a transmission unit configured to transmit the video data to the video receiving device via any of a plurality of access points; and

a handover processing unit configured to scan the access points for handover,

the transmission unit is configured not to transmit at least some of frames of the video data to be transmitted during the scan, and configured to transmit an advance notice of the scan to the video receiving device before performing a segmented scan, and

the video receiving device includes;

a reception unit configured to receive the video data and the advance notice;

a reproduction unit configured to reproduce the video data; and

a reproduction control unit configured to, in response to the advance notice, adjust the timing of reproducing, by the reproduction unit, the video data that has been received after the advance notice and before the scan.