Digital information processing device capable of dynamically interchanging information

The present invention provides a digital information interchanging device in which the data interchange is controlled mainly by a portable digital information device, such as a PDA, for getting information from another information processing device, such as a notebook computer. The larger size second device includes a format transformation interface, a communication interface and a signal processing interface. The smaller size first device includes signal transceiving interface and communication interface, which can transmit a command to start up the first device, control the information transmission from the first device and display the information on the second device. As a result, the portable first device can utilize the powerful function of the second device in a dynamic or free moving way.

DETAILED DESCRIPTION OF THE INVENTION As shown in FIG. 1, a digital information interchanging device according to the present invention includes a first electronic device 10 and a second electronic device 20 . The first electronic device 10 mainly includes a main system 11 , a display 12 , a format transformation interface 13 , a communication interface 14 , a signal processing interface 15 and a power switch 16 . The main system is composed of a microprocessor, memories and operational circuits for storing and processing data. The display 12 communicates with the main system 11 for showing information executed by the main system 11 . The display 12 is controlled by the main system 11 . The format transformation interface 13 also communicates with the main system 11 for converting the data of main system 11 into a cross-platform format, which is a commonly readable format for different types of electronic device to read or display. The communication interface 14 communicates with the format transformation interface 13 and the power switch 16 . The communication interface 14 will encode the formatted data coming from the format transformation interface 13 into communication signal for wire or wireless communication. The communication interface 14 includes a connection port 141 . The signal processing interface 15 communicating with the communication interface 14 includes a signal transceiver 151 , a signal controller 152 and a power supply 153 . The signal transceiver 151 includes an antenna 1511 for transmitting and receiving communication signals. The signal controller 152 will process the communication signal received by the antenna 1511 . The power supply 153 provides electric power for the signal processing interface 15 to maintain in a working state. The power supply 153 is rechargeable that it can be recharged also as the first electronic device 10 is being recharged. The communication signal transferred from the communication interface 14 to the signal processing interface 15 will be transmitted outwards by the signal transceiver 151 . The power switch 16 is used to turn on and turn off the first electronic device 10 . The second electronic device 20 mainly includes a main system 21 , a display 22 , a communication interface 23 , a signal transceiving interface 24 and a power switch 25 . The main system 21 is composed of a microprocessor, memories sand operational circuits for storing and processing data. The display 22 communicates with the main system 21 for showing information executed by the main system 21 . The communication interface 23 communicates with the main system 21 for encoding commands of the second electronic device 20 to be transmitted outwards via wire or wireless method, and decoding the communication signal received from the first electronic device 10 into displayable (cross-platform) format for the display 22 . The communication interface 23 further includes a connector port 231 . The signal transceiving interface 24 communicating with the communication interface 23 includes an antenna 241 for transmitting and receiving communication signals. The power switch 25 is used to turn on and turn off the second electronic device 20 . Referring to FIGS. 2, 3A and 3 B, the information interchanging procedures between the first and the second electronic devices 10 and 20 are as follows. A. The second electronic device 20 controls starting up of the first electronic device 10 : ( FIG. 2 ) a) The signal processing interface 15 of the first electronic device 10 is keeping working by power of the power supply 153 for waiting to receive outer signals; b) The power switch 25 of the second electronic device 20 is turned on by user; c) The main system 21 of the second electronic device 20 generates a turn-on command for the first electronic device 10 , and transfers to the communication interface 24 ; d) The communication interface 23 of the second electronic device 20 encodes the turn-on command into communication signal and transfers to the transceiving interface 24 ; e) The transceiving interface 24 of the second electronic device 20 transmits the communication signal outwards; f) The signal transceiver 151 in the signal processing interface 15 of the first electronic device 10 receives the communication signal transmitted from the second electronic device 20 , and transfers to the signal controller 152 ; g) The signal controller 152 decodes the communication signal, recognizes the turn-on command, and passes to the power switch 16 ; h) The power switch 16 turns on the main system 11 , but does not turn on the display 12 in order to save power. B. Information interchange between the first electronic device 10 and the second electronic device 20 : ( FIGS. 3A, 3B ) a) The main system 21 of the second electronic device 20 generates a request command and transfers to the communication interface 23 ; b) The communication interface 23 of the second electronic device 20 encodes the request command into communication signal and transfers to the transceiving interface 24 ; c) The transceiving interface 24 of the second electronic device 20 transmits the communication signal outwards; d) The signal transceiver 151 in the signal processing interface 15 of the first electronic device 10 receives the communication signal transmitted from the second electronic device 20 , and transfers to the signal controller 152 ; e) The signal controller 152 decodes the communication signal, recognizes the request command, and passes to the main system 11 ; f) The main system 11 executes the command, provides the requested information, and transfers to the format transformation interface 13 ; g) The format transformation interface 13 of the first electronic device 10 transforms the information into cross-platform format, and transfers to the communication interface 14 ; h) The communication interface 14 of the first electronic device 10 encodes the formatted information into communication signal, and transfers to the signal processing interface 15 ; i) The signal transceiver 151 in the signal processing interface 15 of the first electronic device 10 transmit the communication signal outwards; j) The signal transceiver 24 of the second electronic device 20 receives the communication signal, and transfers to the communication interface 23 ; k) The communication interface 23 of the second electronic device 20 decodes the communication signal into cross-platform format, and transfers to main system 21 ; l) The main system 21 transfers the information to the display 22 for showing the information. By the aforesaid procedures, the second electronic device 20 can remotely activate the main system 11 of the first electronic device 10 , but not activate the display 12 of the first electronic device 10 . The second electronic device 20 controls the first electronic device 10 to transfer required information, and displays the information on the display 22 of the second electronic device 20 . Therefore, the user can use the second electronic device 20 , such as a PDA dynamically, i.e., in a freely movable state, to attain information of the first electronic device 10 , utilize the more powerful functions of the first electronic device 10 , and achieve information interchange. As shown in FIG. 4, a second embodiment of the present invention, as the distance between the first and the second electronic devices 10 , 20 is suitable, a communication cable 30 is used to connect the connector port 141 of the first electronic device 10 and the connector port 231 of the second electronic device 20 . So that, the information interchange can be achieved. The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.