JPH05122145A - Information display device - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide an information display device for receiving and displaying various information transmitted wirelessly, and to provide a configuration that is portable and can easily support various transmission formats. To do. [Structure] Radio wave receiving unit 3 for receiving information to be wirelessly transmitted
A receiving unit main body 1 in which a reception processing unit 4 for demodulating a signal received by the radio wave receiving unit 3 is housed in a box, a storage unit 5 for storing received information, a display unit 6, and a control unit 7. The display unit main body 2 housed in the box is connected and coupled by a connector or the like, and the information received by the receiving unit main body 1 is stored in the storage unit 5 and displayed on the display unit 6. The receiving unit body 1 exchanges according to the transmission format of information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display device which wirelessly transmits various information such as news, receives the information, and stores and displays the information. Information on printed materials such as newspapers, magazines, and books can be viewed repeatedly at any time, but it requires a lot of manpower and time for writing, editing, printing, and distributing. Also, the information broadcasted by television, radio, etc. does not require time for printing, distribution, etc., and the latest information can be obtained in real time, but you can repeat and view it again with a tape recorder etc. It is necessary to keep a record. Therefore, there is a demand for a means for obtaining information that has the advantages of printed information and the advantages of information such as broadcasting.

[0002]

2. Description of the Related Art As mentioned above, information can be obtained by a printed matter, a broadcast, a database service for a contractor, or the like. The printed matter is information such as characters, figures, images, etc., but can be viewed repeatedly at any time. Also, what is broadcast is transient information such as audio and video,
If you have a receiver or receiver, you can listen at any place. However, when repeatedly listening to the information, it is necessary to record it with a tape recorder or the like. In addition, information services such as database services connect a dedicated terminal device to the communication line, and according to the request of the contractor, the latest news and other information, financial information such as exchange rates and interest rates, and product information such as product transactions. Etc., and is displayed or printed out on a dedicated terminal device.

[0003]

As described above, the conventional means for obtaining information is that printed matter needs to wait for delivery or go to a store or bookstore to purchase, and lacks real-time property. It is a thing. On the other hand, the broadcast is real-time and can be heard at home or in any place, but since it is transient information, it must be recorded when it is heard again. In addition, the information providing service usually requires a dedicated terminal device to be connected to a communication line, and thus lacks portability.

Therefore, a system is constructed in which various kinds of information are transmitted by weak radio waves from information transmitting devices which are distributed and arranged in various places by connecting to a wired or wireless network, and the information is received by a portable receiving device. It may be displayed as In that case, various systems may coexist and the information transmission format may differ. It is necessary for any of these various systems to be able to receive and display information arbitrarily. It also needs to be easy to carry. It is an object of the present invention to provide an information display which is portable and can easily support various transmission formats.

[0005]

The information display of the present invention comprises:
To describe with reference to FIG. 1, a receiving unit main body 1 formed of a box that accommodates a radio wave receiving unit 3 that receives wirelessly transmitted information and a reception processing unit 4 that demodulates a signal received by the radio wave receiving unit 3. And a storage unit 5 such as a semiconductor memory which has a configuration capable of being connected and coupled to the receiving unit main body 1 by a connector or the like, and stores the information received by the receiving unit main body 1, and the storage information of the storage unit 5 is displayed. Display unit 6 such as a liquid crystal display
And a display unit main body 2 formed of a box housing a control unit 7 for controlling the storage unit 5 and the display unit 6.

Further, the reception processing section 4 of the receiving section main body 1 is provided with a decoding section for receiving and demodulating the encrypted signal and decoding the demodulated signal.

Further, the control unit 7 of the display unit main body 2 compares the information stored in the storage unit 5 with the reception information newly added from the reception unit main body 1, and if there is no comparison, the reception is performed. The control for writing information in the storage unit 5 is performed.

When the remaining storage capacity of the storage unit 5 is smaller than the amount of information received from the reception unit main body 1, the control unit 7 of the display unit main body 2 deletes the oldest storage order of the storage unit 5. Then, the control for writing the received information is performed.

[0009]

The information received by the radio wave receiving section 3 of the receiving section main body 1 is received, demodulated by the reception processing section 4 into reception information, and stored in the storage section 5 of the display section main body 2 by the control section 7. Writing is performed, and the stored information is read by the control of the control unit 7 and displayed on the display unit 6. Therefore, real-time information can be displayed and viewed at any time. In addition, when the receiving unit main body 1 and the display unit main body 2 are configured to be connectable by a connector or the like, and the transmission formats such as modulation and frequency due to different systems and information are different,
The receiver main body 1 adapted to the transmission format is connected and coupled to the display main body 2. Therefore, by preparing various types of the receiver main body 1, it is possible to support all systems and the like.

A receiving unit 4 of the receiving unit body 1 is provided with a decrypting unit that encrypts all information or specific information to be wirelessly transmitted and decrypts it for contractors and the like. Therefore, only a limited holder can receive, store and display the information.

When the information is constantly transmitted by radio,
The same information may be received repeatedly. In that case, since the same information is already written in the storage unit 5, rewriting is not performed. If the received information is different from the information stored in the storage unit 5, it is written in the storage unit 5.

Since the storage capacity of the storage unit 5 is finite,
If multiple types of information have already been written, and the remaining storage capacity is less than the amount of new received information, the received information cannot be written to the remaining storage area. Delete and write the received information. Therefore, the storage information of the storage unit 5 is sequentially updated with new reception information.

[0013]

FIG. 2 is a schematic side view of an embodiment of the present invention,
Reference numeral 11 is a receiving unit main body, 12 is a display unit main body, 13 is a radio wave receiving unit, 14 is a reception processing unit, 15 is a storage unit including a semiconductor memory, 16 is a display unit including a liquid crystal display panel, 17 is a control unit, and 18 is Receiving antenna, 19 is a connector, 20, 2
1 is a coupling part, 22 is a connector, 23 and 24 are coupling parts, 2
5 is a power switch, 26 is a display page control switch, 27 is a power battery, 28 is an AC power adapter connection port, 29 is an earphone connection port, 30 is a printer output connection port, 31 is a video output connection port, and 32 is a remote control connection. Show mouth.

The case where the receiver main body 11 is connected and connected to the opposite side of the display main body 12 from the display 16 is shown.
9 and 22 are electrically connected to each other,
The display unit main body 12 and the receiving unit main body 11 are integrated with each other by mechanical connection between the reference numeral 21 and the connecting portions 23 and 24. The coupling portions 20, 21, 23 and 24 can be formed at the four corners of the facing surfaces of the display body 12 and the receiving body 11.
Further, it is also possible to configure these coupling portions 20, 21, 23, 24 with conductors and use them for power supply. It is also possible to use the magnetic attractive force by forming the coupling portions 20, 21, 23 and 24 with a magnet and a magnetic body. The AC power adapter connection port 28, earphone connection port 29, printer output connection port 30, video output connection port 31, remote control connection port 32, power switch 25, etc.
It is also possible to disperse and provide it on the other surface of the display unit main body 12.

FIG. 3 is a block diagram of an embodiment of the present invention, in which the same reference numerals as those in FIG. 2 indicate corresponding parts, 41 is a band filter, 42 is a high frequency amplifier, 43 is a mixer, 44 is a local oscillator, and 45 is a band. Filter, 46 is an intermediate frequency amplifier,
47 is a demodulation circuit, 48 is a signal processing circuit, 49 is a decoding circuit, 50 is a reception memory, 51 is a storage memory, 52 is a screen memory, 53 is a resume data memory, 54 is a comparison circuit, 55 is a control circuit, and 56 is an interface. Circuit, 57
Is a drive circuit, and 58 is a liquid crystal display panel.

The receiver main body 11 is constructed by housing a radio wave receiver 13 connected to an antenna 18 and a reception processor 14 in a box made of metal or plastic. The display unit body 12 includes a storage unit including a reception memory 50, a storage memory 51, a screen memory 52, and a resume data memory 53, a display unit 16 including a drive circuit 57 and a liquid crystal display panel 58, and a comparison circuit 54. The control unit 55 including the control circuit 55 and the interface circuit 56 is housed in a box made of metal, plastic, or the like. The size of the box can be selected according to the display area of the liquid crystal display panel 58, and can be, for example, a size of B5 size. The thickness of the receiver main body 11 is several mm to several tens mm depending on the integrated circuit of each part.
It is possible to make the thickness of the display unit main body 12 as well.
The thickness of can be such that it can accommodate the battery 27 such as an AA battery.

The receiving section main body 11 and the display section main body 12 are electrically connected by the connectors 19 and 22, and the coupling sections 20 and 2 are connected.
1, 23, 24 mechanically coupled, power switch 2
When 5 is turned on, operating power is supplied from the battery 27 to each unit. Then, the antenna 18 receives the wireless transmission information by the weak radio wave in the vicinity of the information transmission device connected to the network, and the band pass filter 4 of the radio wave reception unit 13 is received.
1 allows only the radio frequency band to pass, is amplified by the high frequency amplifier 42 and is added to the mixer 43.
The intermediate frequency signal is mixed with the local oscillating signal from the signal, the intermediate frequency signal is extracted by the band filter 45, amplified by the intermediate frequency amplifier 46, and added to the reception processing unit 14 as a reception signal. In this case, by setting the radio frequency to several 100 MHz or several GHz, it becomes possible to transmit a large amount of information at high speed, so that the reception of required information is completed while passing through the vicinity of the information transmitting device. be able to.

In the reception processing unit 14, the demodulation circuit 47
Is demodulated into a baseband signal, and the signal processing circuit 48 performs processing such as error correction to obtain received information. When the transmission information is encrypted, it is decrypted by the decryption circuit 49 to be the reception information. This received information is sent to the connector 1
It is added to the display unit main body 12 via 9, 22. The demodulation circuit 47 in the reception processing unit 14 has a demodulation configuration corresponding to the modulation system from the information transmission device.
When transmitting information by SK modulation, the configuration of the PSK demodulation circuit is used. Similarly, the decoding circuit 49
The configuration has a decryption algorithm corresponding to the encryption format.

In the display unit main body 12, the receiving unit main body 1
The reception information from 1 is once written in the reception memory 50. The control circuit 55 controls the reception memory 50, the storage memory 51, the screen memory 52, and the resume data memory 53.
When the reception information is written in the reception memory 50, as shown in the flowchart of FIG. 4, the reception information is read from the reception memory 50 (a), the storage information is read from the storage memory 51 (b), and compared by the comparison circuit 54. (C) In the case of comparison match, it indicates that the same information as the previously received information has been received, so the content of the reception memory 50 is cleared (e).
On the other hand, if the comparison does not match, it is new information, and therefore it is transferred from the reception memory 50 to the storage memory 51 and written (d).
Thereby, new information can be stored in the storage memory 51.

Further, the control circuit 55 uses the display page control switch 2
The content of the resume data memory 53 is transferred to the screen memory 52 in accordance with a control signal from 6 or a control signal applied to the remote control connection port 32 from a remote controller (not shown).
Alternatively, information for one screen from the storage memory 51 is displayed on the screen memory 5
2, the contents of the screen memory 52 are added to the display unit 16, and the driving circuit 57 displays information on the liquid crystal display panel 58. For example, the display page control switch 26 is a seesaw switch, and a control signal is input to the control circuit 55 so that the front page is instructed when one is pressed and the next page is instructed when the other is pressed. The circuit 55 controls the read address of the storage memory 51 according to the control signal, reads the information for one screen corresponding to the previous page or the subsequent page, and transfers it to the screen memory 52. As described above, the liquid crystal display panel 58 can have a display area of about B5 size, and in that case, one page of an ordinary magazine or book can be displayed as one screen. it can. It is also possible to provide a display scroll function.

Further, the displayed information can be output to a printer (not shown) connected to the printer output connection port 30 via the interface circuit 56 to be printed out. Also, information including a moving image can be displayed by outputting from the video output connection port 31 to a display device having a large screen. The voice information can be converted into a digital voice signal by an AD converter or the like, or the voice can be synthesized and output by the voice synthesizer, and an earphone or a speaker can be connected to the earphone connection port 29 to listen to the information. When such a voice information output means is built in the control circuit 55, for example, a speaker can be provided in the display unit main body 12.

The storage memory 51 can have a storage capacity of several megabytes or more because the integration density of the semiconductor memory is improved. For example, as shown in FIG. When the reception information is transferred and written from, the free area is set as the first as the writing priority order. When this empty area is exhausted, the write priority order of the information area having the oldest write order to the storage memory 51 becomes higher, and the write priority order of the information area having the nth write order is, for example, n + 1. Will be the second. By controlling the information writing area of the storage memory 51 as described above, the control circuit 55 can effectively use the limited storage capacity to store new information.

The radio wave receiving section 13 of the receiving section main body 11 has a predetermined reception frequency band, and the demodulation circuit 47 of the reception processing section 14 has a predetermined demodulation configuration. Or when the modulation method is different,
Reception and demodulation cannot be performed by the receiver main body 11.
Therefore, the receiving unit main body 11 can be separated from the display unit main body 12, and the receiving unit main body adapted to the information transmission frequency and the modulation method can be connected and coupled to the display unit main body 12 to receive and display the information. That is, the receiving unit main body 11 which is integrated into a small size and has a structure capable of receiving and demodulating such as system compatibility and information type compatibility is provided for selective connection coupling. Thus, the information can be easily received and stored and displayed. Further, although the case where the receiving unit main body 11 is connected and coupled to the back surface of the display unit 16 of the display unit main body 12 is shown, for example, it may be configured to be connected and coupled to the upper surface or the side surface of the display unit main body 12.

In a system in which information transmitting devices are distributed and connected to a network, information transmitted from a center or the like is always wirelessly transmitted from the information transmitting device, or the information transmitting device is configured as a vending machine. Similar to the above, by inserting money or a credit card etc. to send information by weak radio waves, it can be received by the information display and displayed in real time, and it is repeatedly displayed as necessary. can do.

[0025]

As described above, according to the present invention, the receiver main body 1 in which the radio wave receiver 3 and the reception processor 4 are housed in a box.
And the display unit main body 2 in which the storage unit 5, the display unit 6, and the control unit 7 are housed in a box are connected and coupled to each other to form an information display device. It is possible to easily receive and display information in various systems by preparing a receiving unit main body corresponding to the difference in modulation method and the like. Since it is small and lightweight, it can be carried at all times, and it is possible to receive and accumulate not only the latest information such as news but also science and literature, and read it repeatedly as desired. Also, if the time is relatively short, moving image information can be received and accumulated and displayed. Further, since printed matter is not used, there is an advantage that paper resources can be saved.

In the case of encrypting and transmitting specific information or information for a specific contractor or the like, the receiver main body 11 having a decryption circuit for decrypting the encrypted information is sold only to the contractor, and the receiver main body is sold. By connecting and connecting 11 to the display unit main body 12, the information can be received, accumulated, and displayed, so that various limited use of information becomes possible.

The storage unit 5 of the display unit body 2 can be miniaturized by being composed of a semiconductor memory or the like, but since the storage capacity is limited, only new information is accumulated and there is no free space. In this case, the storage unit 5 can be effectively used by deleting the old information and accumulating the new information.

[Brief description of drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a schematic side view of an embodiment of the present invention.

FIG. 3 is a block diagram of an embodiment of the present invention.

FIG. 4 is a flowchart of received information processing.

FIG. 5 is an explanatory diagram of an information writing order.

[Explanation of symbols]

 1 receiver main body 2 display main body 3 radio wave receiver 4 reception processing unit 5 storage unit 6 display unit 7 control unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mariko Hayakawa 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Fujitsu Limited

Claims (4)

[Claims] 1. A receiving unit comprising a box containing a radio wave receiving unit (3) for receiving information transmitted by radio and a reception processing unit (4) for demodulating a signal received by the radio wave receiving unit (3). A main body (1), a storage unit (5) having a configuration capable of being connected and coupled to the reception unit main body (1), and storing information received by the reception unit main body (1); and the storage unit (5) And a display unit body (2) formed of a box containing the storage unit (5) and a control unit (7) for controlling the storage unit (5) and the display unit (6). An information display characterized by the following. 2. The information display device according to claim 1, wherein the reception processing unit (4) of the receiving unit body (1) includes a decryption unit for decrypting encrypted information. 3. The control unit (7) of the display unit body (2)
Compares the information stored in the storage unit (5) with the reception information newly added from the receiving unit main body (1), and stores the reception information in the storage unit (5 only when there is no comparison. 3. The information display device according to claim 1, wherein the information display device has a configuration for performing control for writing to the information. 4. The control unit (7) of the display unit body (2)
When the remaining storage capacity of the storage unit (5) is smaller than the amount of information received from the receiving unit body (1), the storage unit (5) is deleted from the oldest storage order, and The information display according to claim 1, wherein the information display has a configuration for performing control of writing received information.