DEVICE FOR SENDING IMAGE DATA FROM CAMERA TO CCTV NETWORK

• US 20110197241A1
• Filed: 02/25/2011
• Published: 08/11/2011
• Est. Priority Date: 12/04/1997
• Status: Active Grant

• Current Assignee: Axis AB (Canon Inc.)
• Original Assignee: Axis AB (Canon Inc.)
• Inventors: Koch, Mark, Knapp, Walter, Creamer, Rob, Helton, Richard, Araki, Yoshiyuki
• Granted Patent: US 8,381,255 B2
• Time in Patent Office: Days
• US Class Current: 725/105
• CPC Class Codes: H04N 1/00214 details of transmission
• CPC Class Codes: H04N 1/00217 only involving computer data transmission protocols, e.g. SMTP, WAP or HTTP communication protocol aspects and techniques in packet data networks H04L69/00; network-specific arrangements or communication protocols supporting networked applications H04L67/00
• CPC Class Codes: H04N 1/00244 with a server, e.g. an internet server fax-servers or the like for store and forward H04N1/324
• CPC Class Codes: H04N 1/00838 Preventing unauthorised reproduction
• CPC Class Codes: H04N 1/00854 Recognising an unauthorised user or user-associated action
• CPC Class Codes: H04N 19/164 Feedback from the receiver or from the transmission channel
• CPC Class Codes: H04N 19/172 the region being a picture, frame or field
• CPC Class Codes: H04N 2201/0084 Digital still camera
• CPC Class Codes: H04N 23/66 Remote control of cameras or camera parts, e.g. by remote control devices
• CPC Class Codes: H04N 23/661 Transmitting camera control signals through networks, e.g. control via the Internet
• CPC Class Codes: H04N 23/695 Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects

Abstract

An integrated Internet camera includes, as embedded components contained within the camera body and controlled by a microcontroller, at least a network interface device for connecting to the Internet, a transport control device for packetizing according to Internet protocols, a file transfer device for communicating with a destination user directory on the Internet, and a transmission initiating device for initiating the connection and transfer operations of the file transfer device and transport control device. The network interface device may be a modem, network adapter, or adapter for connection to the Internet. Upon capturing the digital image, the camera initiates a connection to the Internet, connects to the destination user directory, and uploads the digital images. Thereafter, the digital images are available to authorized (or any) user having access to the Internet.

Claims

1. An imaging device, comprising:

a camera lens formed from infrared transmitting material;

an infrared sensor, wherein the infrared sensor and the camera lens together record infrared images;

an image processing circuit including a compression circuit that outputs compressed image signal data corresponding to the recorded infrared images;

a microcontroller that controls circuits, including the image processing circuit;

a storage device that stores image signal data, including compressed image signal data;

a network adapter that communicates with a networked device capable of serving files via an internet-protocol address;

a first transmission mode routine that sends single image data files via a connection-oriented protocol, said connection oriented protocol employing a first packet header type; and

a second transmission mode routine that streams image data files employing a second packet header type having less data than said first packet header type.

2. The imaging device according to claim 1, wherein:

said microcontroller is capable of switching from the first transmission mode routine to the second transmission mode routine, the second packet header type having less data than said first packet header type; and

said microcontroller transmits one or more items of compressed image signal data from the storage device of the digital camera to the destination networked device capable of serving files, via the network adapter and the internet-protocol address.

3. The imaging device according to claim 1, wherein the second transmission mode routine that streams image data files employs a low-overhead protocol that provides no retransmission.

4. The imaging device according to claim 3, wherein the low-overhead protocol is UDP/IP.

5. The imaging device according to claim 1, wherein the connection oriented protocol of the first transmission mode routine is a protocol that offers retransmission of lost or erroneous packets.

6. The imaging device according to claim 5, wherein the connection oriented protocol is TCP/IP.

7. The imaging device according to claim 1, wherein the image processing circuit includes color translation routines to differentiate infrared frequency gradients into hotter and cooler color areas.

8. A network-capable self-controlled camera, comprising:

an infrared sensor;

an optical system for forming an image on the infrared sensor and including lenses formed from infrared transmitting material;

an image capturing circuit, for capturing digital images from the infrared sensor;

a network interface device connectible to a computer network for transmission of the digital images, as digital image files, across the computer network;

a file transfer device for communicating, via the network interface device, with a destination computer at a selected network address on the computer network, and for transferring the digital image files to the destination computer according to a predetermined file transfer protocol;

a transport control device for controlling addressing of the digital image files to the selected network address according to a transport control protocol that does not retransmit erroneous data, thereby increasing a rate of image transfer by said file transfer device; and

a self-initiating transmission initiating device for self-initiating a connection with the computer network and for self-initiating a connection with the destination computer at the selected network address via said transport control device and said network interface device.

9. The network-capable self-controlled camera according to claim 8, wherein the self-initiating transfer initiating device further self-initiates transfer of the digital image files to the destination computer after said self-initiating transmission initiating device self-initiates said connection with said destination computer, such that said self-controlled camera connects and transfers the digital image files to the destination computer without receiving commands from an external device.

10. The network-capable self-controlled camera according to claim 9, further comprising an image processing circuit including color translation routines to differentiate infrared frequency gradients into hotter and cooler color areas.

11. The network-capable self-controlled camera according to claim 8, wherein the transport control protocol is UDP/IP.

12. An infrared camera, comprising:

an infrared sensor arranged to record infrared images;

a camera lens formed from infrared transmitting material arranged to form an infrared image of a scene on the infrared sensor;

an A/D converter arranged to convert an analog image signal from the infrared sensor to a digital image signal;

a compression engine arranged to compress captured digital images;

a transport protocol stack arranged to prepare said compressed digital images for transmission over a network; and

a network interface device.

13. The infrared camera according to claim 12, further comprising image processing circuitry including color translation routines arranged to differentiate infrared frequency gradients into hotter and cooler color areas in resulting image.

14. The infrared camera according to claim 12, wherein the transport protocol stack implements an Internet protocol stack enabling Internet access.

15. The infrared camera according to claim 14, wherein the Internet protocol stack implements a TCP/IP stack.

16. The infrared camera according to claim 14, wherein the Internet protocol stack implements a UDP/IP stack.

17. The infrared camera according to claim 12, wherein the protocol stack includes a first protocol being a connection-oriented protocol employing a first packet header type and a second protocol being a low overhead protocol employing a second header type having less data than said first packet header type.

18. The infrared camera according to claim 17, wherein the camera further comprises a switch arranged to switch from preparing said compressed digital images for transmission using the first protocol to preparing said compressed digital images for transmission using the second protocol.

19. The infrared camera according to claim 18, wherein the first protocol is a TCP/IP protocol and the second protocol is a UDP/IP protocol.