WO2012036629A1 - Apparatus for wireless video transmission - Google Patents

Apparatus for wireless video transmission Download PDF

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Publication number
WO2012036629A1
WO2012036629A1 PCT/SG2010/000410 SG2010000410W WO2012036629A1 WO 2012036629 A1 WO2012036629 A1 WO 2012036629A1 SG 2010000410 W SG2010000410 W SG 2010000410W WO 2012036629 A1 WO2012036629 A1 WO 2012036629A1
Authority
WO
WIPO (PCT)
Prior art keywords
video
camera
processing unit
central processing
audio
Prior art date
Application number
PCT/SG2010/000410
Other languages
French (fr)
Inventor
Winn Tan
Original Assignee
T-Data Systems (S) Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by T-Data Systems (S) Pte Ltd filed Critical T-Data Systems (S) Pte Ltd
Publication of WO2012036629A1 publication Critical patent/WO2012036629A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
    • H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals

Definitions

  • This invention relates to and refers particularly, though not exclusively, to apparatus for wireless video transmission and refers particularly, though not exclusively, to an Internet Protocol video camera for wireless video transmission.
  • IP Internet Protocol
  • All video cameras are connected via cables directly to a host computer such as, for example, a personal computer or to a separate wireless transmitter.
  • a host computer such as, for example, a personal computer or to a separate wireless transmitter.
  • IP Internet Protocol
  • a WiFi router is required to connect the video camera to a host computer. This will normally require the video camera to be bulky and require higher power for the inbuilt, complex compression system.
  • a video camera comprising a central processing unit; at least one memory module operatively connected to the central processing unit; a camera module configured to capture video images; and a video encoder operatively connected to the camera module.
  • the video encoder is configured to encode captured video in real time and to pass the encoded captured video to the central processing unit.
  • the video camera may further comprise a microphone.
  • the video encoder may further comprise an audio encoder for encoding any received audio.
  • the wireless module may be further configured to wirelessly stream the encoded captured audio simultaneously with the encoded captured video.
  • the video camera may further comprise a switch operatively connected to a source of power and to the central processing unit.
  • the switch may be configured to be remotely controlled by a host machine.
  • the switch may be operatively connected to a source of power via a power controller.
  • the at least one memory module may comprises a RAM module and a ROM module. According to another exemplary aspect there is provided a method of recording video. Specifically, the method comprises capturing the video; encoding the captured video in real time; and streaming the encoded captured video wirelessly.
  • the method may further comprise capturing audio, encoding the audio, and streaming the encoded captured audio wirelessly and simultaneously with the encoded captured video.
  • the recording of the video or the audio may be remotely controlled by a host machine.
  • the host machine may toggle between the video from each of the plurality of video cameras by a controlled connect/disconnect from each of the plurality of video cameras so that the host machine is connected to no more than one of the plurality of video cameras at any given time.
  • the host machine may be operatively connected to one of the plurality of video cameras for display of the relevant video on a monitor of the host machine.
  • the host machine may receive the video from each of the plurality of video cameras by WiFi Adhoc wireless protocol.
  • Embodiments of the video camera may therefore directly connect - via a wireless network such as a WiFi network - with a remote host machine to which the encoded captured video is wirelessly streamed.
  • a wireless network such as a WiFi network - with a remote host machine to which the encoded captured video is wirelessly streamed.
  • Figure 1 is an overall perspective view of an exemplary embodiment of a video camera
  • Figure 2 is a block diagram of the components of the video camera of Figure 1
  • Figure 3 is an overall perspective view of a variant of the exemplary embodiment of Figure 1.
  • a video camera 100 having a base 102 and a body 104.
  • the body 104 contains the lens 106 and may also have a microphone 108.
  • a power source such as, for example, a battery 1 10 may be located in the base 102 or the body 104 and is operatively connected to a power controller 1 12.
  • a switch 114 may be provided for functions such as, for example, ON and OFF.
  • the switch 114 may be a physical switch on the video camera 100 or may be an electronic switch controlled remotely by a host machine 200 such as, for example, a personal computer, Internet-enabled mobile telephone, or the like.
  • the video camera 100 also has a central processing unit (“CPU") 116 operatively connected to the switch 114 and thus the power source 110 via the power control 112.
  • the CPU 116 is configured to run a video server.
  • the video camera 100 may have an encoding module 122 such as, for example, a JPEG encoder, operatively connected to both the CPU 116 and a CMOS camera module 124.
  • the encoder module 122 is to perform real time encoding such that the encoding will not consume CPU 1 16 power.
  • the captured video may be compressed real time by the encoding module 122 frame by frame.
  • the encoding module may also include an audio encoder/decoder ("CODEC") if the microphone 108 is provided.
  • CODEC audio encoder/decoder
  • a wireless module 126 is also operatively connected to the CPU 1 16 and is preferably configured to operate on known wireless protocols such as, for example, WiFi.
  • the wireless module 126 will include an antenna (not shown).
  • the wireless module 126 is configured to continuously stream encoded video and possibly encoded audio. It may also be configured to wirelessly receive control functions from the host device 200.
  • the video camera 100 will automatically capture video by the camera module 124, and possibly audio if the microphone 108 is provided.
  • the captured video and audio is encoded by the encoder 122 and passed through the CPU 116 to the wireless module 126.
  • the wireless module 126 can continuously stream the video and audio using a suitable wireless protocol such as, for example, WiFi Adhoc.
  • a known web browser may be used to connect the host machine 200 to the video camera 100 and stream video from the video camera 100.
  • the streaming may include audio if the microphone 108 is provided. This may be simultaneously with the video.
  • the host device 200 can then record the video, and any audio, on the host device 200.
  • Security by use of such well-known protocols as a user name and password may be included for control of user access to the streaming video and any audio from the video camera 100, as well as controlling access to control functions of the video camera 100 by the host device 200 - for example, the switch 1 4.
  • the video camera 100 is preferably not more than 30cm in size (normally diameter).
  • a user local to the host device 200 may use the web browser to remotely control the video camera 100.
  • Such control of the video camera 100 may involve the motion of the video camera 100 to pan, tilt, and/or zoom into a specific area.
  • the user may also specify the time and/or date for the video camera 100 to record video.
  • the wireless module 126 may be configured to receive video and/or audio data from the host device 200 for playback to a user local to the video camera 100.
  • further video cameras may be operatively connected to the host device 200.
  • a further video camera 300 is operatively connected to the host device 200, although there may be more than one further video camera 300.
  • the further video camera(s) 300 is/are substantially identical to the video camera 100.
  • the further video camera(s) also wirelessly communicate with the host device 200 in the same manner as the video camera 100.
  • the host device 100 includes a monitor 210 for display of the video captured by the video cameras 100, 300; as well as a keyboard 220 and mouse 230 for controlling the host device 200.
  • the host device 200 If the host device 200 is receiving the video from the video cameras 100, 300 by WiFi Adhoc, the host device 200 will be able to toggle between the video from the video camera 100 and the video from the video camera(s) 300 by way of a controlled connect/disconnect from each of the video cameras 100, 300 as under the Adhoc mode the host device 200 can be connected to only one of the video cameras 100, 300 at any given time. It is preferably that at any given time the host device 200 is operatively connected to one of the video cameras 100, 300 for display of the relevant video on the monitor 210. Whilst the foregoing description has described exemplary embodiments, it will be understood by those skilled in the technology concerned that many variations in details of design, construction and/or operation may be made without departing from the present invention.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Telephonic Communication Services (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

A video camera (100) is disclosed. The video camera (100) has a central processing unit (116); at least one memory module (118, 120) operatively connected to the central processing unit (116); a camera module (124) configured to capture video images; a video encoder (122) operatively connected to the camera module (124); and a wireless module (126) operatively connected to the central processing unit (116). The video encoder (122) is configured to encode captured video in real time and to pass the encoded captured video to the central processing unit (116). The wireless module (126) is configured to receive the encoded captured video from the central processing unit (116) and to wirelessly stream the encoded captured video. A method of recording video is also disclosed.

Description

Apparatus for Wireless Video Transmission
Technical Field
This invention relates to and refers particularly, though not exclusively, to apparatus for wireless video transmission and refers particularly, though not exclusively, to an Internet Protocol video camera for wireless video transmission.
Background
Current technology does not provide a WiFi-enabled, Internet Protocol ("IP") video camera. All video cameras are connected via cables directly to a host computer such as, for example, a personal computer or to a separate wireless transmitter. For a camera to be WiFi-enabled, an inbuilt power source and a wireless environment will be required. That means a WiFi router is required to connect the video camera to a host computer. This will normally require the video camera to be bulky and require higher power for the inbuilt, complex compression system.
Summary
According to an exemplary aspect there is provided a video camera comprising a central processing unit; at least one memory module operatively connected to the central processing unit; a camera module configured to capture video images; and a video encoder operatively connected to the camera module. The video encoder is configured to encode captured video in real time and to pass the encoded captured video to the central processing unit. There is also a wireless module operatively connected to the central processing unit. The wireless module is configured to receive the encoded captured video from the central processing unit and to wirelessly stream the encoded captured video.
The video camera may further comprise a microphone. The video encoder may further comprise an audio encoder for encoding any received audio. The wireless module may be further configured to wirelessly stream the encoded captured audio simultaneously with the encoded captured video. The video camera may further comprise a switch operatively connected to a source of power and to the central processing unit. The switch may be configured to be remotely controlled by a host machine. The switch may be operatively connected to a source of power via a power controller. The at least one memory module may comprises a RAM module and a ROM module. According to another exemplary aspect there is provided a method of recording video. Specifically, the method comprises capturing the video; encoding the captured video in real time; and streaming the encoded captured video wirelessly.
The method may further comprise capturing audio, encoding the audio, and streaming the encoded captured audio wirelessly and simultaneously with the encoded captured video. The recording of the video or the audio may be remotely controlled by a host machine. There may be a plurality of video cameras wirelessly connectable to the host machine. The host machine may toggle between the video from each of the plurality of video cameras by a controlled connect/disconnect from each of the plurality of video cameras so that the host machine is connected to no more than one of the plurality of video cameras at any given time. At any given time the host machine may be operatively connected to one of the plurality of video cameras for display of the relevant video on a monitor of the host machine. The host machine may receive the video from each of the plurality of video cameras by WiFi Adhoc wireless protocol.
Embodiments of the video camera may therefore directly connect - via a wireless network such as a WiFi network - with a remote host machine to which the encoded captured video is wirelessly streamed. This advantageously means that the embodiments of the video camera do not need to connect to the wireless network via an intermediate device such as a wireless router.
Brief Description of the Drawings
In order that the invention may be fully understood and readily put into practical effect there shall now be described by way of non-limitative example only exemplary embodiments, the description being with reference to the accompanying illustrative drawings. In the drawings:
Figure 1 is an overall perspective view of an exemplary embodiment of a video camera; Figure 2 is a block diagram of the components of the video camera of Figure 1 ; and Figure 3 is an overall perspective view of a variant of the exemplary embodiment of Figure 1. Detailed Description of the Exemplary Embodiments
To refer to the drawing figures there is shown a video camera 100 having a base 102 and a body 104. The body 104 contains the lens 106 and may also have a microphone 108. A power source such as, for example, a battery 1 10 may be located in the base 102 or the body 104 and is operatively connected to a power controller 1 12. A switch 114 may be provided for functions such as, for example, ON and OFF. The switch 114 may be a physical switch on the video camera 100 or may be an electronic switch controlled remotely by a host machine 200 such as, for example, a personal computer, Internet-enabled mobile telephone, or the like.
The video camera 100 also has a central processing unit ("CPU") 116 operatively connected to the switch 114 and thus the power source 110 via the power control 112. The CPU 116 is configured to run a video server. Operatively connected to the CPU 116, and controlled by the CPU 116, are a ROM module 118 and a RAM module 120 for all necessary memory functionality. This may include the storage of any video and/or audio output from the video camera 100 over a predetermined time.
To reduce power consumption the video camera 100 may have an encoding module 122 such as, for example, a JPEG encoder, operatively connected to both the CPU 116 and a CMOS camera module 124. The encoder module 122 is to perform real time encoding such that the encoding will not consume CPU 1 16 power. For example, the captured video may be compressed real time by the encoding module 122 frame by frame. The encoding module may also include an audio encoder/decoder ("CODEC") if the microphone 108 is provided.
A wireless module 126 is also operatively connected to the CPU 1 16 and is preferably configured to operate on known wireless protocols such as, for example, WiFi. The wireless module 126 will include an antenna (not shown). The wireless module 126 is configured to continuously stream encoded video and possibly encoded audio. It may also be configured to wirelessly receive control functions from the host device 200.
Once the switch 114 is in the ON position, and the power source 110 connected, the video camera 100 will automatically capture video by the camera module 124, and possibly audio if the microphone 108 is provided. The captured video and audio is encoded by the encoder 122 and passed through the CPU 116 to the wireless module 126. The wireless module 126 can continuously stream the video and audio using a suitable wireless protocol such as, for example, WiFi Adhoc. A known web browser may be used to connect the host machine 200 to the video camera 100 and stream video from the video camera 100. The streaming may include audio if the microphone 108 is provided. This may be simultaneously with the video. The host device 200 can then record the video, and any audio, on the host device 200. Security by use of such well-known protocols as a user name and password may be included for control of user access to the streaming video and any audio from the video camera 100, as well as controlling access to control functions of the video camera 100 by the host device 200 - for example, the switch 1 4.
The video camera 100 is preferably not more than 30cm in size (normally diameter).
A user local to the host device 200 may use the web browser to remotely control the video camera 100. Such control of the video camera 100 may involve the motion of the video camera 100 to pan, tilt, and/or zoom into a specific area. The user may also specify the time and/or date for the video camera 100 to record video. In addition to wireless receive control functions from the host device 200, the wireless module 126 may be configured to receive video and/or audio data from the host device 200 for playback to a user local to the video camera 100.
As shown in Figure 3, further video cameras may be operatively connected to the host device 200. As shown, a further video camera 300 is operatively connected to the host device 200, although there may be more than one further video camera 300. The further video camera(s) 300 is/are substantially identical to the video camera 100. The further video camera(s) also wirelessly communicate with the host device 200 in the same manner as the video camera 100. The host device 100 includes a monitor 210 for display of the video captured by the video cameras 100, 300; as well as a keyboard 220 and mouse 230 for controlling the host device 200.
If the host device 200 is receiving the video from the video cameras 100, 300 by WiFi Adhoc, the host device 200 will be able to toggle between the video from the video camera 100 and the video from the video camera(s) 300 by way of a controlled connect/disconnect from each of the video cameras 100, 300 as under the Adhoc mode the host device 200 can be connected to only one of the video cameras 100, 300 at any given time. It is preferably that at any given time the host device 200 is operatively connected to one of the video cameras 100, 300 for display of the relevant video on the monitor 210. Whilst the foregoing description has described exemplary embodiments, it will be understood by those skilled in the technology concerned that many variations in details of design, construction and/or operation may be made without departing from the present invention.

Claims

A video camera comprising:
a central processing unit;
at least one memory module operatively connected to the central processing unit;
a camera module configured to capture video images;
a video encoder operatively connected to the camera module, the video encoder being configured to encode captured video in real time and to pass the encoded captured video to the central processing unit;
and a wireless module operatively connected to the central processing unit, the wireless module being configured to receive the encoded captured video from the central processing unit and to wirelessly stream the encoded captured video.
A video camera as claimed in claim 1 further comprising a microphone, the video encoder further comprising an audio encoder for encoding any received audio, and the wireless module being further configured to wirelessly stream the encoded captured audio simultaneously with the encoded captured video.
A video camera as claimed in claim 1 or claim 2 further comprising a switch operatively connected to a source of power and to the central processing unit.
A video camera as claimed in claim 3, wherein the switch is configured to be remotely controlled by a host machine.
A video camera as claimed in claim 3 or claim 4, wherein the switch is operatively connected to a source of power via a power controller.
A video camera as claimed in any one of claims 1 to 5, wherein the at least one memory module comprises a RAM module and a ROM module.
A method of recording video, the method comprising:
capturing the video;
encoding the captured video in real time; and
streaming the encoded captured video wirelessly.
8. A method of recording video as claimed in claim 7, further comprising:
capturing audio;
encoding the audio; and
streaming the encoded captured audio wirelessly and simultaneously with the encoded captured video.
9. A method of recording video as claimed in claim 7 or claim 8, wherein the
recording of the video or the audio is remotely controlled by a host
machine.
10. A method of recording video as ciaimed in claim 9, wherein there is a plurality of video cameras wirelessly connectable to the host machine, the host machine toggling between the video from each of the plurality of video cameras by a controlled connect/disconnect from each of the plurality of video cameras so that the host machine is connected to no more than one of the plurality of video cameras at any given time.
11. A method of recording video as claimed in claim 10, wherein at any given time the host machine is operatively connected to one of the plurality of video cameras for display of the relevant video on a monitor of the host machine.
12. A method of recording video as claimed in claim 10 or claim 11 , wherein the host machine receives the video from each of the plurality of video cameras by WiFi Adhoc wireless protocol.
PCT/SG2010/000410 2010-09-13 2010-10-27 Apparatus for wireless video transmission WO2012036629A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/SG2010/000337 WO2012036624A1 (en) 2010-09-13 2010-09-13 Apparatus for wireless video transmission
SGPCT/SG2010/000337 2010-09-13

Publications (1)

Publication Number Publication Date
WO2012036629A1 true WO2012036629A1 (en) 2012-03-22

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PCT/SG2010/000337 WO2012036624A1 (en) 2010-09-13 2010-09-13 Apparatus for wireless video transmission
PCT/SG2010/000410 WO2012036629A1 (en) 2010-09-13 2010-10-27 Apparatus for wireless video transmission

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106331637A (en) * 2016-08-31 2017-01-11 竹林松大科技股份有限公司 Camera having wireless routing function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060280151A1 (en) * 2005-06-10 2006-12-14 Canon Kabushiki Kaisha Wireless communication apparatus, method for controlling the same, and program therefor
US20080075031A1 (en) * 2006-09-26 2008-03-27 Ohayon Rony Haim Remote transmission system
US20090097548A1 (en) * 2007-10-15 2009-04-16 Qualcomm Incorporated Enhancement layer coding for scalable video coding

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060280151A1 (en) * 2005-06-10 2006-12-14 Canon Kabushiki Kaisha Wireless communication apparatus, method for controlling the same, and program therefor
US20080075031A1 (en) * 2006-09-26 2008-03-27 Ohayon Rony Haim Remote transmission system
US20090097548A1 (en) * 2007-10-15 2009-04-16 Qualcomm Incorporated Enhancement layer coding for scalable video coding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106331637A (en) * 2016-08-31 2017-01-11 竹林松大科技股份有限公司 Camera having wireless routing function

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Publication number Publication date
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