Data displaying device and a method for requesting a data updating

• US 6,505,056 B1
• Filed: 06/25/1999
• Issued: 01/07/2003
• Est. Priority Date: 06/04/1999
• Status: Expired due to Fees

• Current Assignee: Transpacific IP I Limited (Transpacific IP Group Limited)
• Original Assignee: Institute For Information Industry
• Inventors: Liou, Wen-Shan
• Primary Examiner(s): Vo, Nguyen T.
• Assistant Examiner(s): Ly, Nghi H.
• Application Number:
  US09/340,315
• Time in Patent Office: 1,292 Days
• Field of Search: 455/418, 455/419, 455/420, 455/566, 455/517, 455/88
• US Class Current: 455/566
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A data displaying device for bidirectionally communicating with a far end service station by wired or wireless way is disclosed. According to the data sets displayed on the screen. the data displaying device selectively emits a request updating signal to a service station to request the service station to transfer part of updating data. Thus, the service station may reduce the transfer data amount greatly, thus the load of bandwidth is decreased. When a request updating signal is emitted to a service station, the data range of requesting a service station to send ordered updating data includes a data range of screen display.

Claims

1. A data displaying device for bidirectionally communicating with a far end service station by wired or wireless communication, comprising:

a transceiver for emitting a request updating signal to said service station and receiving the updating data from said service station;

first memory means for storing data from said service station;

second memory means for storing executable software programs;

a screen for displaying part of data within said memories, wherein the displaying data is arranged in order;

display moving means for changing the boundary of data being displayed by said screen;

a processor for processing the operation flow of said transceiver, memories means, screen and display moving means, and performing the software program;

through aforementioned structure, when the display moving means is actuated, the processor determines automatically or passively whether a request updating signal is necessary to be sent to said service station, if it determines to send a request signal, said request updating signal including the boundary of updating data, and said boundary of updating data including the data to be displayed on the screen

wherein said processor determines whether said request updating signal is necessary to be sent by comparing the range of the data contents to be displayed in said screen after said display moving means is actuated with the range of previous updating data, assuming after said display moving means being actuated N times, the data contents displayed on said screen is probably over the range of the previous updating data, then said request updating signal being sent to said service station, wherein 0≦

N≦

(P/K), P representing the number of updating data sets beyond above or below the currently displayed data, and K representing the number of scrolled data sets each time said display moving means being actuated.

2. The data displaying device as claimed in claim 1, wherein said display moving means are a move down key and a move up key.

3. The data displaying device as claimed in claim 1, wherein said display moving means are a page up key and a page down key.

4. A method for requesting updating data, which is used by a data displaying device, wherein the data displaying device is bidirectionally communicated with a far end service station by wired or wireless communications, the data displaying device includes a transceiver for emitting updating data request signals to a service station, and receives updating signals from said service station, said data displaying device has a screen for displaying received signals and display moving key for updating the boundary of the data displayed in the screen, when the data displaying device uses the method, the data transferred from the service station to the data displaying device is reduced, wherein the method comprises the following steps:

step A;

setting the initial N data sets displayed on the screen;

step B;

sending a request updating signal to the service station to request the service station to send P updating data sets arranged in order, wherein the range of the P updating data sets includes the N data sets displays on the screen;

step C;

receiving the P updating data sets from the service station;

step D;

displaying N data sets;

step E;

checking whether any display moving key is clicked, if yes, then the process proceeds step F, otherwise the process returns to step E; and

step F;

determining whether a request updating signal is requested, if yes, step B is performed, otherwise, step E is performed.

5. The data updating method as claimed in claim 4, wherein in step F, the process determines whether the boundary of the N data sets to be displayed is near the boundary of the previous updating P data sets, if, yes, step B is performed.

6. The data updating method as claimed in claim 4, wherein if a period of time is elapsed, the data is not updated, then step B is performed.