Display change between mobile terminal display and external device display

• US 7,580,005 B1
• Filed: 08/15/2000
• Issued: 08/25/2009
• Est. Priority Date: 08/15/2000
• Status: Expired due to Fees

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Palin, Arto
• Primary Examiner(s): Nguyen; Hau H
• Application Number:
  US09/639,196
• Time in Patent Office: 3,297 Days
• Field of Search: 340/5.61, 340/825.72, 345/2, 345/352, 345/1.1, 345/1.2, 345/2.1, 345/2.3, 455/550, 455/576, 455/41.2, 455/41.3, 455/556, 455/557, 455/566, 370/473, 370/474, 370/476, 348/552, 348/555, 715716-718, 715/961
• US Class Current: 345/1.1
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G09G 2340/145 related to small screens
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04M 2250/02 including a Bluetooth interface
• CPC Class Codes: H04M 2250/16 including more than one display unit
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A system is provided for transmitting an image from a first display device having certain display capabilities to a second display device having different display capabilities. The image may be received by the first display device as data in a packet or plurality of packets. The packets are split by a splitting application into data to be displayed on the first display device, if any, and data to be displayed on the second display device. The data to be displayed on the second display device is reformatted at the first display device to be transmitted over a wireless, short range communication link, such as a Bluetooth link. The system thereby enables the display on the second display device of an image that either could not be displayed on the first display device or could not be displayed with the same capabilities as on the first display device.

Claims

1. An apparatus comprising:

a processor;

a memory coupled to the processor and configured for storing data provided by the processor;

a splitting application configured to split received data including at least first image information and second image information into at least two data parts based on headers in the received data, wherein the first image information and the second image information are for displaying at least two substantially different images;

a wireless short-range transmitter coupled to the processor and configured to transmit at least one of the at least two data parts wirelessly to an external display device for displaying images corresponding to at least the first image information; and

a display coupled to the processor and configured for receiving at least one data part not transmitted by the wireless short-range transmitter and displaying images corresponding to at least the second image information,

wherein the images displayed on the external display device and the display coupled to the processor are substantially different.

2. An apparatus according to claim 1, further comprising a receiver for receiving a signal comprising data including at least the first image information and the second image information.

3. An apparatus according to claim 2,

wherein the receiver is a wide-area network receiver.

4. An apparatus according to claim 2,

wherein the memory comprises a buffer adapted to buffer the received signal to provide time for the splitting application to split the received data into the at least two parts.

5. An apparatus according to claim 1,

wherein the processor is configured to forward to the display coupled to the processor the at least one part of the received data that is not transmitted to the external display device.

6. An apparatus according to claim 1 wherein the apparatus is a mobile terminal.

7. A method comprising:

obtaining data, including at least first image information and second image information, in frames;

splitting the obtained data into at least two data parts based on headers in the obtained data, wherein the first image information and the second image information are for displaying at least two substantially different images; and

transmitting at least one of the at least two data parts wirelessly to an external display device for displaying images corresponding to at least the first image information,

wherein a coupled display is configured to receive at least one data part not transmitted wirelessly and display images corresponding to at least the second image information, and

wherein the images displayed on the external display device and the coupled display are substantially different.

8. A method according to claim 7,

wherein the obtained data is received from a receiver.

9. A method according to claim 8 further comprising:

buffering a received signal to provide time for a splitting application in a mobile terminal to split obtained data into the at least two parts.

10. A method according to claim 7 further comprising:

forwarding to a display of a mobile terminal a part of the split data that is not transmitted to the external display device.

11. A method according to claim 7, wherein one or more of the obtaining, the splitting, and the transmitting is performed by a mobile terminal.

12. A system comprising a mobile terminal and an external display device,

wherein the mobile terminal comprises a processor;

a memory coupled to the processor and configured for storing data provided by the processor;

a splitting application configured to split received data including at least first image information and second image information into at least two data parts based on headers in the received data, wherein the first image information and the second image information are for displaying at least two substantially different images;

a wireless short-range transmitter coupled to the processor and configured to transmit at least one of the at least two data parts wirelessly to an external display device for displaying images corresponding to at least the first image information; and

a display coupled to the processor and configured for receiving at least one data part not transmitted by the wireless short-range transmitter and displaying images corresponding to at least the second image information,

wherein the images displayed on the external display device and the display coupled to the processor are substantially different.

13. A system according to claim 12 further comprising a receiver for receiving a signal comprising data including at least the first image information and the second image information.

14. A mobile terminal according to claim 13

wherein the receiver is a wide-area network receiver.

15. A system according to claim 13

wherein the memory comprises a buffer adapted to buffer the received signal to provide time for the splitting application to split the received data into the at least two parts.

16. A system according to claim 12,

wherein the processor is configured to forward to the display coupled to the processor the at least one part of the received data that is not transmitted to the external display device.