JP2000312272A - Communication device - Google Patents

Abstract

(57) [Problem] To uselessly transfer data from a facsimile device to a portable electronic device even if the resolution of data received by the facsimile device is significantly different from the resolution of a display device in the portable electronic device. It is another object of the present invention to provide a facsimile apparatus which does not waste data time and eliminates the need for resolution conversion in a portable electronic device. A facsimile apparatus capable of transmitting data to a mobile phone such as a PHS having a display device composed of an LCD or the like. The facsimile apparatus has a function of displaying image data of the mobile phone and a resolution of displayable image data. This is a facsimile apparatus which is detected by data communication with a mobile phone and determines a conversion rate of resolution conversion of the received image data to display data based on the detected information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device capable of transmitting data to another communication device having a display function.

[0002]

2. Description of the Related Art Conventionally, when data received by a facsimile apparatus is transmitted to a mobile phone or a digital camera, data is transmitted at a resolution that is independent of the resolution of a display device in the mobile phone or the digital camera.

[0003]

In the above-mentioned conventional example, the resolution is not converted to a resolution suitable for a display device of a portable telephone or a digital camera. Therefore, for example, when the reception data is to be viewed by a portable terminal connected wirelessly, The data received by the facsimile apparatus is transmitted to the portable terminal as it is, and the portable terminal performs a complicated process of converting the data into display data and displaying the data one by one.

[0004] Therefore, when the data received by the facsimile apparatus of high resolution is transmitted to the portable terminal, there is a problem that the communication time is long although the portable terminal cannot display the data. However, there is a problem that a portable terminal requires the image memory described above, and a function for converting the image data into display data is also required.

Particularly, in a portable electronic device having a small display device such as a PHS or a digital camera, if the resolution of the data received by the facsimile device is significantly different from the resolution of the display device, the facsimile device will not use it. Data transfer and wasted data time are enormous.
In the case of a small-sized portable electronic device such as a PHS or a digital camera, the IC for converting the image memory or the display data and the battery for driving the IC have an adverse effect on the miniaturization and low power consumption of the device. Problem.

According to the present invention, even if the resolution of data received by a predetermined communication device is significantly different from the resolution of a display device of another communication device, unnecessary data transfer to another communication device is prevented. It is another object of the present invention to provide a communication device that does not waste data time and eliminates the need for resolution conversion in another communication device.

[0007]

According to a first aspect of the present invention, there is provided a communication apparatus capable of transmitting data to another communication apparatus having a display function. Detecting means for detecting the resolution, and conversion rate determining means for determining a conversion rate for converting the resolution of the received image data to the resolution of displayable image data in the other communication device according to the detected information. It is a communication device having.

According to a second aspect of the present invention, data communication with another communication device is possible, and in a communication device having a display function, the resolution of image data that can be displayed by the display function is set to the other one. This is a communication device that notifies the communication device.

According to a third aspect of the present invention, in the first aspect, data communication from the communication device to the other communication device is performed according to ITU-T Recommendation T.30. This is a communication device that is a communication performed according to 30 BFT procedures.

According to a fourth aspect of the present invention, in the second aspect, data communication from the other communication device to the communication device is performed according to ITU-T Recommendation T.30. This is a communication device that is a communication performed according to 30 BFT procedures.

According to a fifth aspect of the present invention, in the first aspect, the data communication from the communication device to the other communication device is communication performed by PIAFS.

The invention according to claim 6 is the communication device according to claim 2, wherein the data communication from the other communication device to the communication device is communication performed by PIAFS.

According to a seventh aspect of the present invention, in a communication device capable of transmitting data to a digital camera having a display function, a detecting means for detecting the resolution of image data that can be displayed on the digital camera, and the receiving means And a conversion rate determining means for determining a conversion rate for converting the resolution of the image data obtained into a resolution of image data that can be displayed on the digital camera.

According to an eighth aspect of the present invention, in a digital camera capable of data communication with another communication device and having a display function, the resolution of image data that can be displayed by the display function is set to the other communication device. It is a digital camera that announces.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing the concept of a communication system using a facsimile apparatus 1 and a mobile phone 2 according to one embodiment of the present invention.

In this communication system, a facsimile machine 1, a PHS 2, a display 3 for wirelessly transmitting image data sent from the facsimile machine 1 and having its resolution converted, and a PHS data transmitting / receiving means for communicating with the PHS 2 wirelessly. 4, resolution conversion means 5 for converting the resolution of the image data received by the facsimile apparatus 1 from the facsimile apparatus 8 to be displayed on the display 3, and a PSTN or ISD which is a public network or a digital network.
N6 and a destination facsimile machine terminal 8. The received image data 7 received by the facsimile apparatus 1 from the other party facsimile apparatus 8 and the BFT procedure, PIAFS 9, which is a procedure of wireless communication, are used.

Next, the operation of the facsimile machine 1 will be described.

FIG. 2 is a flowchart showing the operation of the facsimile machine 1.

First, the facsimile machine 1 receives image data from the transmission source facsimile machine 8 (S1),
The operation of transmitting the display image data to the HS 2 is started (S2). Here, if the PHS 2 has the image data display function (S3), displayable resolution information is received from the PHS 2 (S4), and the source facsimile machine 8
Is converted into the display resolution of PHS2 (S5), and the display image data is transmitted to PHS2 (S6).

As described above, after converting the resolution of the received image data to the display resolution of PHS2,
Since the data is transmitted to S2, even if the resolution of the data received by the facsimile apparatus 1 is significantly different from the resolution of the display 3 in the PHS 2, the facsimile apparatus 1
No unnecessary data transfer to S2 is performed, no data time is wasted, and PHS
2, the need for resolution conversion can be eliminated.

If the PHS 2 does not have the image data display function (S3), the transmission of the image data is stopped (S7).

FIG. 3 is a diagram showing a concept of a communication system using a facsimile apparatus 11 and a digital camera 21 according to another embodiment of the present invention.

In FIG. 3, a facsimile machine 11 and
A digital camera 21 is provided.
Are displayed from the facsimile apparatus 11 and display the image data whose resolution has been converted. The digital camera interface circuit 41 is for performing data communication with the digital camera 21, and the resolution conversion means 51 is for displaying the image data received by the facsimile apparatus 11 from the other party facsimile apparatus 8 on the display 31. This is to convert the resolution.
The facsimile device reception image data 7 is data received by the facsimile device 11 from the partner facsimile device 8. PSTN or ISDN 6 is a public line network or a digital line network.

FIG. 4 is a flowchart showing the operation of the facsimile machine 11.

First, the facsimile machine 11 receives image data from the source facsimile machine 8 (S1).
1), an operation of transmitting display image data to the digital camera 21 is started (S12). Here, if the digital camera 21 has an image data display function (S
13) Receives displayable resolution information from the digital camera 21 (S14), and determines the resolution of the image data received from the transmission source facsimile machine 8 by the digital camera 21.
(S15), and the digital camera 21
The display image data is transmitted (S16).

As described above, since the resolution of the received image data is converted into the display resolution of the digital camera 21 and then transmitted to the digital camera 21, the resolution of the data received by the facsimile apparatus 11 and the resolution of the digital camera 21 Even if the resolution of the display 31 is significantly different from the facsimile machine 11,
It does not needlessly transfer data to the digital camera 21, does not waste data transmission time, and eliminates the need for resolution conversion in the digital camera 21.

If the digital camera 21 does not have the image data display function (S13), the transmission of the image data is stopped (S17).

FIG. 5 is a flowchart showing the operation of the facsimile machine 1.

First, a request is made to the facsimile machine 8 to transmit received data (S21). If the other party's facsimile apparatus 8 responds and has display data to be transmitted by the facsimile apparatus 8 (S22), the image data is transmitted. It declares that a reception function and a display function exist, and transmits displayable resolution information to the other party facsimile machine 8 (S23).
Then, display data is received from the partner facsimile machine 8 (S24), and the display data is displayed (S25). If the facsimile machine 8 does not have the display data to be transmitted (S22), the reception is stopped (S26).

The operation of the facsimile apparatus 11 is the same as the operation of the facsimile apparatus 1.

FIG. 6 is a diagram showing the BFT procedure.

FIG. 7 is a block diagram specifically showing the facsimile apparatus 1. As shown in FIG.

The facsimile apparatus 1 includes a first control unit 120 for controlling each unit in the block.
20 includes a document conveying motor 102, a document reading unit 101 for reading a transmission document and converting it into image data, and a network control unit (NCU) 103 for connecting a telephone line to a facsimile apparatus. A manufacturing (modem) 104, an operation panel 105 for a user to instruct an operation command to each section of the apparatus, a first sensor 108 for detecting a state of the facsimile apparatus, a reading motor for conveying a document, and the like. Drive system 1 constituted by
09, a memory 113 for storing various data, and a read image processing unit 114 for processing image data read by the document reading unit 101 and read image data or image data obtained by decoding received encoded image data or ,
A scaling processing unit 115 for scaling the image data obtained by decoding the image data stored in the memory in which the read image data is encoded; and encoding the read image data,
It comprises an encoder 116 for re-encoding received image data and a decoder 117 for decoding received image data and decoding read and encoded image data.

The operation panel 105 has a display device 106 for displaying the status of the facsimile apparatus to the user, and keys 107 for the user to instruct the facsimile apparatus to perform various operations.

The memory 113 includes an image memory 110 for storing received image data and the like, a system RAM (or system memory) 111 which is backed up by a battery or the like so that data is not destroyed even when the commercial power supply is cut off due to a power failure, etc. And a ROM 112 for determining

The resolution conversion means 5 converts the resolution of the received image in accordance with the resolution of the display device of the portable telephone device such as the partner PHS. The PHS transmission / reception circuit 4 has 3
It corresponds to PIAFS, which is data transmission means using a 2K unrestricted digital bearer.

Digital camera interface circuit 300
Communicates with a digital camera. Also,
The recording unit 200 prints a received image and the like.

In the above embodiment, the image data received by the facsimile apparatus is converted by the facsimile apparatus 1 into a resolution that can be displayed on the PHS 2, and transmitted to the PHS 2 by BFT communication compatible with PIAFS. Alternatively, the resolution is converted to a resolution that can be displayed on a digital camera connected to the facsimile apparatus, and is sent to the digital camera.

[0039]

According to the present invention, even if the resolution of data received by a predetermined communication device is significantly different from the resolution of a display device in another communication device, useless data transfer to another communication device can be prevented. This eliminates the need to perform this operation, wastes data time, and eliminates the need for resolution conversion in other communication devices.

[Brief description of the drawings]

FIG. 1 is a diagram showing a concept of a communication system using a facsimile apparatus 1 and a mobile phone 2 according to one embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the facsimile machine 1;

FIG. 3 is a facsimile apparatus 1 according to another embodiment of the present invention.
1 is a diagram showing a concept of a communication system using a digital camera 21 and a digital camera 21.

FIG. 4 is a flowchart showing an operation in the facsimile apparatus 11;

FIG. 5 is a flowchart showing an operation of the facsimile machine 1;

FIG. 6 is a diagram illustrating a BFT procedure.

FIG. 7 is a block diagram specifically showing the facsimile apparatus 1;

[Explanation of symbols]

 1, 11: facsimile machine, 2: PHS, 21: digital camera, 3, 31: display, 5: resolution conversion means, 8: source facsimile machine.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shunichi Fujise 3-30-2 Shimomaruko, Ota-ku, Tokyo F-term in Canon Inc. (reference) 5C022 AA11 AC01 5C062 AA02 AA09 AA37 AB25 AC05 AC08 AC22 AC28 AC43 AE02 AE14 AF14 5C075 AB06 CA04 CA14 CD21 FF09 5C076 AA21 AA22 BA06 CB04

Claims (8)

[Claims] 1. A communication device capable of transmitting data to another communication device having a display function, comprising: detecting means for detecting the resolution of image data that can be displayed on the other communication device; And a conversion rate determining means for determining a conversion rate for converting the resolution of the received image data into the resolution of image data that can be displayed on the other communication apparatus. 2. A communication device capable of performing data communication with another communication device and having a display function, wherein the communication device notifies the other communication device of the resolution of image data that can be displayed by the display function. Characteristic communication device. 3. The data communication according to claim 1, wherein the data communication from the communication device to the other communication device includes:
ITU-T Recommendation T. 30. A communication device, wherein the communication is performed by 30 BFT procedures. 4. The data communication according to claim 2, wherein the data communication from the other communication device to the communication device includes:
ITU-T Recommendation T. 30. A communication device, wherein the communication is performed by 30 BFT procedures. 5. The data communication according to claim 1, wherein the data communication from the communication device to the other communication device includes:
PHS Internet AccessForum Standard (PIAF)
A communication device, which is communication performed by S). 6. The data communication according to claim 2, wherein the data communication from the other communication device to the communication device includes:
A communication device, wherein the communication is performed by PIAFS. 7. A communication device capable of transmitting data to a digital camera having a display function, comprising: detecting means for detecting the resolution of image data that can be displayed on the digital camera; and detecting the resolution of the received image data. A conversion rate determining means for determining a conversion rate for converting image data that can be displayed in the digital camera into a resolution. 8. A digital camera capable of data communication with another communication device and having a display function, wherein the resolution of image data that can be displayed by the display function is notified to the other communication device. Digital camera.