CN1309357A

CN1309357A - GPS pen talker

Info

Publication number: CN1309357A
Application number: CN 00122972
Authority: CN
Inventors: 赵清昱
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-07
Filing date: 2000-09-07
Publication date: 2001-08-22

Abstract

A GPS pen talker as a communication terminal is composed of logic processing unit, RF unit, I/O unit and sim recognizing unit. Its advantages are high personality, less occupied resources, low cost, wireless remote communication and handwriting input.

Description

GPS pen talker

The present invention relates to a kind of wire-less character communication apparatus of handwriting input.

Existing wireless telecommunications system roughly is divided into beeper and mobile phone two big classes.The beeper principle of work is relatively simple, and network-termination device (beeper) only possesses receiving function, launches information by the base station transmitter, in its transmitting boundary, just can receive information through corresponding decoding as beeper.It can only unidirectional reception information, and the user must just can send information by other communication tools (landline telephone, mobile phone, the Internet).Emerging bidirection pager unit and operational outfit cost are high and limited by carrier network, can only open the area use, and rate are higher, and taking of frequency also is a kind of waste.Because of the mobile phone main business is speech communication, cause both sides to converse during physical channel all the time by only point, Internet resources are a large amount of occupied inevitable, and the sampling of voice messaging, coding, encryption, emission etc. must program make quite complexity of information transmission.Provide a kind of SMS service (SMS) in the mobile phone mobile communication business now, it is a kind of new business that transmits text by signaling transmission system, mode by short message service center (SMS-C) receives, stores and transmit text message, can transmit 160 characters at every turn.Its basic service is that short message mails to short message service center from the caller transfer table, mails to called mobile station by short message service center again.

From network structure and Signal Processing process, we find that short message has following advantage:

1., short message do not take the TCH channel of shortage of resources, transmits with signaling method, realized that sharing of Radio Resource promptly do not monopolize circuit all the time.

2., network addressing does not simply need complicated network addressing and distributes the speech channel route.

3., convenient and swift, wireless transmit can not cause information dropout (information is stored in Short Message Center) even take over party user does not start shooting yet.

4., resource occupying is few, rate are cheap.

Present no custom-designed short message terminal on the market, senior mobile phone has short message function, but only as the auxiliary function of mobile phone.By the numeric keyboard of mobile telephone input, process is loaded down with trivial details, speed is extremely slow for literal (Chinese and English).Information management capability is not strong, and lcd screen is very little, and information reading inconvenience can only be transmitted Chinese character and English character, no figure transmittability, and cost is high.

Task of the present invention is: overcome the deficiencies in the prior art, design a kind of cheaply, rate are low, and input is convenient, can realize the communication of wireless remote literal, the conversation by writing formula communication tool that handwriting input is sent in real time.

Task of the present invention realizes as follows: GPS pen talker is made of the logical process part, radio circuit part, input, sim card identification division, the power pack that become electrical equipment to connect successively.

The logical process part comprises central processing unit (CPU), random access memory (RAM), ROM (read-only memory) (ROM), I/O interface.This part is a kind of computing machine Single Chip Microcomputer (SCM) system.CPU is as handling the control that central role is radio frequency part control, I/O part, the control and the transmission of data each other of other integrated circuit.The RAM effect is a storage conversation by writing device operational data.ROM deposits conversation by writing device master routine and watchdog routine, SMS service character library, deposits code table, display control program etc.The I/O interface provides the connection of input-output apparatus, so that the hand-written information of importation is discerned, encoded in order to transmitting.The relative mobile phone logic/audio-frequency unit of this part is simple in structure, has cancelled complicated Audio Signal Processing part, can reduce cost to a certain extent.

The radio circuit part comprises sending part, receiving unit, frequency synthesizer and antenna.The sending part branch comprises bandpass filtering, GMSK modulator, radio-frequency power amplifier, duplexer etc.Receiving unit comprises duplexer, rf filtering, radio frequency amplification, mixing, intermediate frequency filtering and intermediate frequency amplification etc.Frequency synthesizer provides the local frequency that receives path, transmission path need of work.It is subjected to central processing unit (CPU) control of logical gate.This part and mobile phone radio frequency circuit part are basic identical.

Input is a jumbotron touch LCD screen.Partly link to each other with logical process by the I/O interface, in order to the input and the demonstration of information, the input of Word message is carried out handwriting input by writing pencil providing with the machine, and is convenient and swift, and need not study.

The SIM card identification division comprises SIM card socket, SIM card switch, SIM card power supply pipe.Partly link to each other with logical process, by emission and receiving unit and GMS net connection, to determine the legitimacy of terminal device.This part and hand SIM card identification division are identical.

Power pack uses 3.6 volts of charged lithium cells or Ni-MH battery to power as total system, its battery can with mobile phones universal.

The present invention has following advantage:

(1), input is convenient, based on handwriting input, directly carries out the Chinese character input with writing pencil, auxiliary input methods such as also available phonetic, five.

(2), based on the signaling transfer function of existing cellular network, resource occupation is few, rate are cheap.

(3), need not transform the existing equipment and the network of operator, need not build utility appliance, and not account for new frequency, save resource, also can protect environment.

(4), by the node between cellular network and the Internet, can realize wireless real-time tranception Email.

(5), can transmit the notepaper figure.

(6), need not do any transformation to SIM cards of mobile phones just can use.

(7), the deaf-mute is easy to use, handwriting input need not phonetic representation.

(8), conversation by writing device when shutdown, short message is temporary in Short Message Center, when starts shooting, when can receive, unlikely drop-out, this point obviously is better than beeper.

(9), as there not being the conversation by writing device, available phone is dialed " mobile secretary " platform and is finished calling to the conversation by writing device, also can call out even carries out the Internet and the conversation by writing of commenting in writing between the device by the Internet.

(10), the conversation by writing device has the repertoire (even news stock information, weather forecast, business card, counter, dictionary, schedule, notepad, notepaper and written historical materials) of Chinese character call and hand-written palmtop computer.

(11), perfect along with operator SMS breath center function, also can carry out e-business capabilitys such as stock exchange bank transfer.

Fig. 1 is conversation by writing device tactic pattern figure;

Fig. 2 is the digital mobile communication system structural representation;

Fig. 3 is a GSM transfer table voice signal processing procedure block diagram;

Fig. 4 is the classification chart of logic channel;

Fig. 5 is the procedure chart of setting up of the calling MS of PSTN customer call MS.

A most preferred embodiment of the present invention, as figure, the conversation by writing device is made of the logical process part, radio circuit part, input, sim card and the power pack that become electrical equipment to connect successively, wherein:

Input, input of the present invention are a jumbotron touch LCD screen.Partly link to each other with logical process by the I/O interface, in order to the input and the demonstration of information.The input of Word message is carried out handwriting input by writing pencil providing with the machine, and is convenient and swift, and need not study.

SIM card identification division, this part comprise SIM card socket, SIM card switch, SIM card power supply pipe.Partly link to each other with logical process, by emission and receiving unit and GMS net connection, to determine the legitimacy of terminal device.This part and hand SIM card identification division are identical.

Power pack, the conversation by writing device use 3.6 volts of charged lithium cells or Ni-MH battery to power as total system, its battery can with mobile phones universal.

The course of work of conversation by writing device is:

1., the communication between conversation by writing device and conversation by writing device.When both sides' device of commenting in writing all passes through authentication, both sides can directly carry out the literal transmission in the mode of conversation by writing.This is a kind of wireless conversation by writing of not having the region restriction, and it can also send a telegraph the conversation by writing of sub-mail form mutually by the node between the Internet and the cellular network.

2., the device shutdown if the callee comments in writing, information will be temporary in Short Message Center, reach callee's device of commenting in writing until the callee time side of starting shooting by Short Message Center.

3., phone dials and is the conversation by writing device, by artificial or automatically " mobile secretary " platform carry out the short message editor or Direct Digital is called out.

4., now, have a lot of websites that the service of online transmission mobile phone short message is provided, the online conversation by writing device of calling out has not had any obstacle.

After the present invention examines, produce and put on market, the user of cell phone network operator is rolled up by electronic equipment manufacturer, promote its to the improvement of Short Message Center's function with perfect, can be more convenient for the powerful informational function of device of commenting in writing is used fully.

Claims

1, a kind of GPS pen talker, it is characterized in that: constitute by the logical process part, radio circuit part, input, sim card, identification division, the power pack that become electrical equipment to connect successively, said logical process part comprises central processing unit (CPU), random access memory (RAM), ROM (read-only memory) (ROM), I/O interface.This part is a kind of computing machine Single Chip Microcomputer (SCM) system.CPU is as handling the control that central role is radio frequency part control, I/O part, the control and the transmission of data each other of other integrated circuit.The RAM effect is a storage conversation by writing device operational data.ROM deposits conversation by writing device master routine and watchdog routine, SMS service character library, deposits code table, display control program etc.The I/O interface provides the connection of input-output apparatus, so that the hand-written information of importation is discerned, encoded in order to transmitting.

2, conversation by writing device as claimed in claim 1 is characterized in that: said radio circuit part comprises sending part, receiving unit, frequency synthesizer and antenna.The sending part branch comprises bandpass filtering, GMSK modulator, radio-frequency power amplifier, duplexer etc.Receiving unit comprises duplexer, rf filtering, radio frequency amplification, mixing, intermediate frequency filtering and intermediate frequency amplification etc.Frequency synthesizer provides the local frequency that receives path, transmission path need of work.It is subjected to central processing unit (CPU) control of logical gate.This part and mobile phone radio frequency circuit part are basic identical.

3, conversation by writing device as claimed in claim 1 is characterized in that: said input is a jumbotron touch LCD screen.Partly link to each other with logical process by the I/O interface, in order to the input and the demonstration of information.

4, conversation by writing device as claimed in claim 1 is characterized in that: said SIM card identification division comprises SIM card socket, SIM card switch, SIM card power supply pipe.Partly link to each other with logical process, by emission and receiving unit and GMS net connection, to determine the legitimacy of terminal device.This part and hand SIM card identification division are identical.

5, conversation by writing device as claimed in claim 1 is characterized in that: said power pack, use 3.6 volts of charged lithium cells or Ni-MH battery to power as total system, its battery can with mobile phones universal.