Data communication system and portable data processing terminal used therein
First Claim
1. A data communication system for communicating data between a portable data processing terminal and a data processing apparatus, the system comprising:
- an interface unit connected to said data processing apparatus;
means, provided in said portable data processing terminal, for detecting a connection between said portable data processing terminal and said interface unit;
mode setting means, provided in said portable data processing terminal, for setting said portable data processing terminal to a communication mode;
means, provided in said portable data processing terminal, for outputting a communication request to said data processing apparatus until said data processing apparatus responds to the communication request after said mode setting means sets the communication mode; and
means, provided in said data processing apparatus, for executing data communication with said portable data processing terminal via said interface unit in response to the communication request.
1 Assignment
0 Petitions
Accused Products
Abstract
A data communication system comprises a portable data processing terminal, such as an electronic notebook, and an external data processing apparatus, such as a personal computer. When the electronic notebook is connected to an RS232C I/F box connected to the personal computer, an I/F switch provided in the electronic notebook is switched on to supply a connection signal to an RS232C I/F circuit in the electronic notebook. An interruption signal is supplied from the RS232C I/F circuit to a CPU of the electronic notebook so that a communication program previously stored in a ROM is activated and a communication request is sent to the personal computer. The personal computer responds to the communication request sent from the electronic notebook and returns a response signal so that a data communication process is performed.
-
Citations
12 Claims
-
1. A data communication system for communicating data between a portable data processing terminal and a data processing apparatus, the system comprising:
-
an interface unit connected to said data processing apparatus; means, provided in said portable data processing terminal, for detecting a connection between said portable data processing terminal and said interface unit; mode setting means, provided in said portable data processing terminal, for setting said portable data processing terminal to a communication mode; means, provided in said portable data processing terminal, for outputting a communication request to said data processing apparatus until said data processing apparatus responds to the communication request after said mode setting means sets the communication mode; and means, provided in said data processing apparatus, for executing data communication with said portable data processing terminal via said interface unit in response to the communication request. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A portable data processing terminal comprising:
-
means for detecting connection with a predetermined interface unit which is provided in a data processing apparatus; means for setting said portable data processing terminal to a communication mode in response to a connection detection of said detecting means; means for outputting a communication request until said data processing apparatus responds to the communication request after said mode setting means sets the communication mode; and means for communicating data with the data processing apparatus via said interface unit. - View Dependent Claims (7, 8, 9, 10)
-
-
11. A data communication system for communicating data between a portable data processing terminal and a data processing apparatus, the system comprising:
-
an interface unit connected to said data processing apparatus; means, provided in said portable data processing terminal, for setting said portable data processing terminal to a communication mode upon connection to said interface unit; control means, provided in said data processing apparatus, for making said data processing apparatus perform a communication processing upon connection of said portable data processing terminal to said interface unit; and means, respectively provided in said portable data processing terminal and said data processing apparatus, for performing a data communication between said portable data processing terminal and said data processing apparatus after said portable data processing terminal and said data processing apparatus become a communication enable state. - View Dependent Claims (12)
-
Specification