WO1991014965A1

WO1991014965A1 - Thin electronic book displaying a picture information

Info

Publication number: WO1991014965A1
Application number: PCT/KR1991/000009
Authority: WO
Inventors: Young Son Jo
Original assignee: Young Son Jo
Priority date: 1990-03-21
Filing date: 1991-03-20
Publication date: 1991-10-03
Also published as: KR910017316A

Abstract

This invention relates to the thin electronic book on which the picture information of the film tape can be displayed on the thin liquid crystal display by inputting such information as conventional book or photograph on the specially designed film tape. Namely, the picture information of the film tape which is specially designed can be read by using the image sensor, and this signal is displayed on the liquid crystal display through the liquid crystal controller. The electronic book, which is handy, portable like a cassette tape instead of the conventional thick books or reference books which have to be carried.

Description

Thin electronic book displaying a picture information

Field of the Invention

This invention relates to a thin electronic book either displaying an information of film tape on a digital input^* dot matrix display-by transmitting it video RAM after it has been converted into a digital signal utilizing the image sensor, or displaying it on the analog input liquid crystal display module.

Background of the Invention As the conventional information recording media, diskette, memory card, compact disk, cassette tape, video etc. are widely being used. There is a growing tendency to use the digital audio and video tape with their superiority recognized in terms of their quality. However, it is a really difficult problem to contain a large number of the information of a book in such recording media.

The compact disk, digital audio tape and digital video tape can meet somewhat such a requirement, howeve these media are sophisticatedly and essentially configurated and accordingly the reproduction mechanism is required. In consequence, the volume becomes bulky and difficult to carry and all the information of a boo should be digitalized and the memory capacity should be increased so that the resolution and the distinction of color are deep-seated, therefore all these matters caus the costpushing factor. These things, except for the compact disk, can be easily copied. Therefore, there i a lot of foundation to occur the problems on the copyright.

A video camera can be taken up as an example as following; when the picture signal of the image sensor (for example, same area type sensor as CCD) is generated by synchronous signal of oscillation part, in order to input the signal, several MHz broadband image signal can be recorded on the same 20μm video tape through the color separating circuit, encoding circuit, feed/color seperating circuit, amplifier and feed/color mixed circuit.

Accordingly, the maximum 0.3um accuracy is essential and the information recorded on the video tape can be re-converted through the reverse process of the above-mentioned process. Accordingly, such problems occur as the dimension becomes bigger and the price is higher since the highly reliable circuit necessitates. Also the resolution quality would be lowered through such double processes and such problem can be somewhat resolved in the digital video tape, however there is a limitation in increasing fundamentally the resolution.

Also, in case of video tape recorder, only successive pictures can be seen and the special circuit should be installed to prevent the picture quality from being deteriorated, otherwise it is impossible to watch the stopped picture of one page or two pages.

Objectives of the Invention

The objective of this invention is to provide the thin electronic book displaying information on the liquid crystal display after the information concerned has been directly converted into the digital signal other than the double conversion like the conventional system, since the digital process of a picture has recently become possible by using the image(picture processing) sensor like CCD. (Charge Coupled Device)

The other objective of this invention is to impro more durability of the information recorded on film and the safekeeping of recording than any other media by inputting and recording the picture information on the tape which are produced in similar shape as the conventional tape without digital-converting the contents of a book.

Another purpose of this invention is to utilize information whenever it may be wanted irrespective of place and time instead of books made of paper by making the tapes easily to be carried.

Summary of the Invention

The functions of thin electronic book of this invention are: the content of either a book or a pictur is stored as a picture inmformation on a film tape whic is specially designed, the above information is stored on a video RAM after the data has been converted by using the sensor, and the information is displayed either on the digital input dot matrix liquid crystal display or on the analog input liquid display. Namely being different from the conventional video system etc. , since the information directly stored on a film tape is dispalyed by using the image sensor, its structure is simpler and able to provide a stop screen. Therefore it can be used like a book and a higher quality of resolution can be provided according to the picture-cell of the liquid crystal display and the image se.nsor.

Namely, being different from the compact disk or digital video tape etc. , the picture information is displayed with a graphic mode. Also the film tape may be used through the optical radiating processing with a manuscript photographed on a film tape.

Brief Description of Drawings

Referring to the thin electronoc Book, the pertinent drawings are enclosed herewith which have explained as above. The detailed explanation is given as follow:

Fig. 1 is a schematic representation of the thin electronic book and film tape of this invention.

Fig. 2 is a block diagram shown the outline of system actual structure of the thin electronic book of this invention.

Fig. 3 is a flow chart showing an operation of the thin electronic book of this invention.

Detailed Description of the Invenion

Fig. 1 is an outlined total pictorial drawqing for the thin elctroic book 1 of this invention and the followings are shown there: liguid crystal display 2 for information display, film tape 3 having a transparent window 31 and index indication window 32, tape holder 4, page indicator 5, light and darkness handler 6, contrast hadnler 7, enter key 10, power switch 12, page up/down keys 13, 14.

Also, whenever may be necessary, such function keys 8 for page input, indicator for table of contents, screen-split,- data communication,- enlargement and reduction can be installed.

Fig. 2 has the following-listed functions and components as a system configuration of the thin electonic book 1 of this invention: micro-processor 15 receiving a constant oscillation output from the ordinary oscillator, ROM 11 with which a program can be easily altered from outside, motor driving circuit 19 locating the page of a film tape, optical driving circuit 20, video RAM(S-RAM) 21 resisting against the data to be displayed by the mapping method on the above-mentioned liquid crystal display 2, liquid crystal controller 22 operating under the control of micro-processor 15 so that the said tape is displayed by a graphic method other than the character method, image sensor 23 reading the picture information of the film tape, pulse-driving circuit 26 driving a horizontal and vertical pulse, sample-hold circuit 25 adjusting the image signal in accordance with the given reference value, RGB separating circuit 28 converting the signal of the above-mentioned sample hold circuit into RGB image signal, A/D converter 27 digitalizing the above RGB-converted signal, and data transmission and address circuit 17 transmitting the said video RAM 21 by address decoding. Also, RGB separating circuit 6

28 can be directly displayed by using the analog-typed thin film transistor typed liquid crystal display module (Example: Hitachi TM26001V in Japan).

In order to achieve the said purpose, the liquid crystal display 2 which is able to image-process 64 Kbyte video RAM's information, is installed and a special film tape 3 where a picture information is printed is inserted into the tape holer 4.

The film tape 3 is similar to the conventional cassette tape, and it is projected by using a mirror 3 on the doubled transparent window 31 with the light coming out of the lamp of the said optical driving circuit 20, since the specially processed picture information is input in the same shape as a film inste of magnetic tape. The said projected screen is converted into a graphic way other than a character method by the above-mentioned image sensor 23. The image signal converted by the above-mentioned image sensor 23 is adjusted by the sample-hold circuit 25 in accordance with the given reference value and this signal is converted into RGB signal through the RGB separating circuit 28. The RGB signal is directly displayed either on the analog input-type display module or is sequentially transmitted and stored after it has been digitalized through the said A/D converter

27. Accordingly, the above-mentioned stored informati is displayed in the mapping method other than characte method on the liquid crystal display 2.

In the thin electronic book 1, the method of turning over a page is controlled by the up or down ke 13 or 14. When the key 13 or 14 is pushed down, the motor of the motor driving circuit 19 is fixed to loca by either regular turn or reverse turn and the page section is index-displayed on the film tape face.

Namely, when the index reaches to the detection window 32, the optical sensor which is an index sensing sensor(not shown in the drawings), senses and locates the tape correctly to the transparent window where the image sensor 23 is located.

Another feature of the film tape 3 is to develop like the development of the conventional camera film. Namely, the film tape 3 can be easily developed and printed by using an outside source of light like an optical driving circuit of the thin electronic book 1 this invention.

Also, the thin electronic book 1 of this inventio is possible to communicate with a personal computer whe a separate communication module (not shown in the drawings) and the contents of the electronic book 1 ca be output through printer.

Fig. 3 is a flow chart showing the actual moveme condition. The power switch 12 is turned on after the film tape 3 where the picture information is input has been inserted on the film tape entrance 4 of the optica electronic book 1 in fig. 1. Then, the program which built-in in the micro-processor 15 is to be operated a an error of the system is to be checked and the action of the image sensor 23 is to be commanded. At the same time, the optical lamp 20 is lit and the picture information is perceived by a sensor. It is displaye on the liquid crystal display after it has been converted into digital signal and transmitted to the video RAM 21. Also, for the movement of page, the pa up or down k,eγ 13 or 14 shown in Fig. 1 is pushed.

The interrupt signal caused by the said key 13 or 14 input in the key scan port which is built-in in the k box 24 by which the page up/down is to be decided.

When the up key 13 is pushed, the motor driving circuit 19 rotates up to the fixed angle and the film tape 3 is correctly coincided with the face of the im sensor 23. After the picture of the film tape 3 has been coincided with, the said motor driving circuit 1 stops and the optical driving circuit 20 and the pict processing sensor 23 should be on.

After the picture information of the tape 3 has been transmitted to the video RAM 21 and been display on the liquid crystal display 2, the optical circuit and the picture processing sensor 23 should be off. When the page down key 14 is pushed, the motor driving circuit 19 is rotated reversely up to the pre-fixed angle and the film tape 3 is to be located the image sensor 23 and the picture infromation is displayed on the liquid crystal display 2 through the same process as the said page up.

The function of continous forward and backward winding of page can be added. As the said descriptio the thin electronic book of this invention makes such information as a book or picture to be easily display on the liquid crystal display by using the specially designed film tape. This is a graphic technology othe than the mixed method of the conventional recording method which is character method and graphic method. Accordingly, this can substitute for the exsting books the price of_%which is lower and of unchangeable qualit media and un-necessary to re-edit a book like CD, DAT, Memory Card. It is easily perceivable and recognizabl that any change or modification within the idea and scope of this invention. Accordingly, this invention should be limited within the scope of the attached claim.

Claims

What is claimed is :

1. An electronic book for displaying a picture information of film, said electronic book comprising: film tape 3 ; micro processor 15 ; ROM 11 by which a program can- be easily changeable; motor driving circuit 19 locating the page of said film tape 3 ; optical driving circuit 20 ; video RAM 21 for the data storage; liquid crystal controller 22 operating under the said micro processor 15 ; image sensor 23 reading the picture information; key box 24 ; horizontal and vertical pulse driving circuit 26 ; sample and hold circuit 25 adjusting the image signal in accordance with the given reference value; RGB seperating circuit 28 ; A/D converter 27 ; and data transmission address circuit 17

2. An electronic book according to claim 1, wherein the said image sensor 23 outputs image signal to the analog type liquid crystal display without converting the image signal into digital.

3. An electronic book according to claim 1, wherein the said film tape 3 further comprises an mirror 33, which reflects the light of said optical driving circuit 20 on the said film tape 3 passing-through the transparent window 31, so that information of said film tape 3 being directly projected on the said image sensor 23,

4. An electronic book according to claim 1, wherein said electronic book 1 further comprises an optical sensing sensor which perceives the index of said film tape 3 so that the screen for one page portion is correctly located.