Image transmission apparatus and method using CDMA communication network
View Patent ↗An image transmission apparatus and method using a CDMA communication network are disclosed. The apparatus for transmitting an image captured by a camera to a wireless terminal of a user by means of a mobile communication network, includes an image input unit for receiving an image signal from outside, an image conversion unit for converting an image outputted from the image input unit into a form receivable by the wireless terminal, and a wireless data transmission/reception unit for receiving an image request signal, restructuring the signal outputted from the image conversion unit into a small packet unit and transmitting the packet to the terminal of the user. By transmitting the image data in small packet units instead of transmitting it at once, the image data can be transmitted even with a CDMA wireless modem of a small capacity.
1. An image transmission apparatus for transmitting an image captured by a camera to a wireless terminal of a user via a mobile communication network, the apparatus comprising:
an image input unit adapted to receive an image signal;
an image conversion unit for converting an image received from the image input unit into a form receivable by the wireless terminal; and
a wireless data unit adapted to restructure the image received from the image input unit into at least one small packet unit, and to transmit the at least one small packet to the terminal of the user separately;
wherein the wireless data unit is further adapted to receive an image request signal from the wireless terminal of the user and to restructure the image received from the image input unit in response to the received request signal, the image request signal including a requested resolution and a requested image format for the transmitted image.
2. The image transmission apparatus of claim 1 , wherein the wireless data unit is further adapted to transmit and receive data.
3. The image transmission apparatus of claim 1 , wherein:
the mobile communication network includes a CDMA network; and the wireless data unit transmits the at least one small packet over the CDMA network.
4. The image transmission apparatus of claim 1 , wherein the wireless data unit includes a CDMA modem.
5. The image transmission apparatus of claim 1 , wherein the small packet unit comprises less than 1 kb of data.
6. An image transmission method for transmitting an image captured by a camera to a wireless terminal of a user via a mobile communication network, the method comprising the steps of:
receiving an image signal;
receiving an image request signal from the wireless terminal of the user including a requested image resolution and a requested image format;
converting the image signal into as form receivable by the wireless terminal based on the image request signal;
restructuring the converted image signal into at least one small packet unit; and
transmitting the at least one small packet to the terminal of the user separately.
7. The image transmission method of claim 6 , wherein the transmitting step transmits said at least one small packet over a CDMA network.
8. The image transmission method of claim 6 , wherein the transmitting step further comprises transmitting the at least one small packet via a CDMA modem.
9. A method of transmitting an image signal to a wireless terminal of a user over a mobile communication network, comprising the steps of:
receiving an image request signal from a wireless terminal of a user, the image request signal including a requested resolution and a requested image format for the transmitted image signal;
converting an image signal into one of a plurality of predetermined formats based on said image request signal;
packetizing said converted image signal; and
transmitting said packetized image signal over said mobile communication network to said wireless terminal of said user.
10. The method of claim 9 , further comprising the step of compressing said converted image signal prior to performing said packetizing step, and wherein the packetizing step packetizes said compressed converted image signal.
11. The method of claim 9 , wherein said packetizing step packetizes said converted image signal into packets comprising less than 1 kb of data.
12. A computer readable medium having computer executable instructions stored thereon, the instructions adapted to control an apparatus to request an image to be transmitted to a wireless terminal of a user over a mobile communication network, the request comprising:
a start code;
data representing a phone number of a reception unit;
data representing a control command, adapted to cause an image from a camera to be transmitted to the wireless terminal of the user;
data representing an image size;
data representing an supported image type; and
an end code.
13. The computer readable medium of claim 12 , wherein said control command comprises a camera selection command, adapted to select one of a plurality of available cameras.
14. The computer readable medium of claim 12 , wherein said image size defines a window size of an image to be transmitted.
15. The computer readable medium of claim 12 , wherein said image type comprises JPG and WBMP.
16. A computer readable medium having computer executable instructions stored thereon, the instructions adapted to control an apparatus to transmit image data to a wireless terminal of a user over a mobile communication network, the image data comprising a plurality of packets, each packet comprising:
a start code, a header, a packet number, image data, an error check code, and an end code, and wherein said header comprises data representing a phone number of a receiving unit, a total number of packets to be transmitted, and an entire video size.
17. The computer readable medium of claim 16 , wherein said mobile communication network includes a CDMA network, and the signal is transmitted over the CDMA network.