JP2569619B2 - Facsimile image signal processing method - Google Patents

Facsimile image signal processing method

Info

Publication number
JP2569619B2
JP2569619B2 JP62280234A JP28023487A JP2569619B2 JP 2569619 B2 JP2569619 B2 JP 2569619B2 JP 62280234 A JP62280234 A JP 62280234A JP 28023487 A JP28023487 A JP 28023487A JP 2569619 B2 JP2569619 B2 JP 2569619B2
Authority
JP
Japan
Prior art keywords
image signal
size
pages
page
signal processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP62280234A
Other languages
Japanese (ja)
Other versions
JPH01122265A (en
Inventor
知行 島田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP62280234A priority Critical patent/JP2569619B2/en
Publication of JPH01122265A publication Critical patent/JPH01122265A/en
Application granted granted Critical
Publication of JP2569619B2 publication Critical patent/JP2569619B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Facsimiles In General (AREA)
  • Storing Facsimile Image Data (AREA)
  • Facsimile Transmission Control (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、フアクシミリ装置の画信号処理方式に関す
る。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image signal processing method for a facsimile apparatus.

従来の技術 従来、ISO A6サイズ相当の原稿を送信するフアクシミ
リ装置は、相手機がCCITT T30、T4勧告に従うところの
標準G3機と認識された場合、伝送路上の主走査長を1,72
8dot/lineとする為に、A6サイズ相当の主走査長である8
64dotに対して、第4図(a)に示す様に、両端の432do
tずつを強制的に白色として伝送する方法、あるいは第
4図(b)又は(c)に示す様に、A6サイズ相当の有効
画面を左寄せ、あるいは右寄せにして、残り半分の走査
線を強制的に白色として伝送する方法が採用されてい
た。第4図中のWは白色信号の部分を示し、斜線部がA6
サイズ相当の実効画面を示す。
2. Description of the Related Art Conventionally, a facsimile apparatus that transmits a document equivalent to ISO A6 size, when the other party is recognized as a standard G3 machine that conforms to the CCITT T30 and T4 recommendations, the main scanning length on the transmission path is 1,72.
In order to make 8 dots / line, 8 is the main scanning length equivalent to A6 size
For 64 dots, as shown in Fig. 4 (a), 432dos at both ends
The method of forcibly transmitting each t as white, or as shown in FIG. 4 (b) or (c), the effective screen corresponding to the A6 size is left-justified or right-justified, and the remaining half of the scanning lines are forcibly applied. A method of transmitting as white was adopted. W in FIG. 4 indicates a white signal portion, and a hatched portion indicates A6.
An effective screen equivalent to the size is shown.

発明が解決しようとする問題点 しかしながら、上述した従来のA6サイズ相当の原稿を
送信するフアクシミリ装置は、第4図(a),(b),
(c)からも明らかな様に、画情報に関係しない冗長な
白色信号が付加されるために、以下の問題点を有してい
た。
Problems to be Solved by the Invention However, the above-described conventional facsimile apparatus for transmitting an original of A6 size corresponds to FIGS. 4 (a), (b), and (4).
As is apparent from (c), since a redundant white signal irrelevant to image information is added, there is a problem as described below.

第1の問題点は、冗長な白色信号も含めて伝送路へ送
出するために、白色信号の分だけ、伝送時間が増大して
しまうこと。
The first problem is that the transmission time is increased by the amount of the white signal because the signal including the redundant white signal is transmitted to the transmission path.

第2の問題点は、受信側の標準G3機において、A4判相
当の受信記録紙に対して、冗長な白色信号が含まれた形
で受信される為に、約50%の無効情報が含まれ、受信記
録紙が無駄であることが挙げられる。
The second problem is that about 50% of invalid information is contained in the standard G3 machine on the receiving side because it is received in the form that redundant white signal is included in the received recording paper of A4 size equivalent. That is, the received recording paper is wasted.

本発明は従来の上記実情に鑑みてなされたものであ
り、従つて本発明の目的は、従来の技術に内在する上記
諸欠点を解消することを可能としたフアクシミリの新規
な画信号処理方式を提供することにある。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional circumstances, and accordingly, an object of the present invention is to provide a facsimile novel image signal processing method capable of solving the above-mentioned drawbacks inherent in the conventional technology. To provide.

問題点を解決するための手段 上記目的を達成する為に、本発明によるISO A6サイズ
相当の原稿を送信するフアクシミリ装置は、標準G3機に
対して送信する場合に、読取部の次段にA6サイズ相当の
読取画信号を2ページ分蓄積する手段を2個以上、すな
わち、A6サイズ相当で4ページ分以上有し、さらに相手
機となる標準G3機に対してA6サイズ相当の4ページ迄を
手順上の1ページとして伝送するために、前記読取画信
号蓄積手段を制御する手段を有する。
Means for Solving the Problems In order to achieve the above-mentioned object, the facsimile apparatus for transmitting a document equivalent to ISO A6 size according to the present invention, when transmitting to a standard G3 machine, has an A6 There are two or more means for storing two pages of read image signals equivalent to the size, that is, four pages or more for A6 size, and up to four pages for A6 size for the standard G3 machine as the partner machine. In order to transmit the read image signal as one page in the procedure, there is provided means for controlling the read image signal storage means.

実施例 次に、本発明を良好な一実施例について図面を参照し
て具体的に説明する。
Next, a preferred embodiment of the present invention will be specifically described with reference to the drawings.

第1図は本発明によるISO A6サイズ相当の原稿を送信
するフアクシミリ装置の一実施例を示すブロツク構成図
である。
FIG. 1 is a block diagram showing an embodiment of a facsimile apparatus for transmitting a document equivalent to ISO A6 size according to the present invention.

第1図において、参照符号SCANは画信号読取部、IMA,
IMBは夫々A6サイズ相当の画情報を2ページ相当蓄積す
る為のメモリ、SW1,SW2は画情報転送経路切替えスイツ
チ、MCNTは画情報蓄積メモリ(IMA,IMB)制御部、CODは
符号化部、MODは変調部、NCUは網制御部、およびTCは主
制御部を夫々示す。ここで、本発明により追加されたブ
ロツク要素は、12で示される一点鎖線枠内のみである。
In FIG. 1, reference numeral SCAN is an image signal reading unit, IMA,
IMB is a memory for storing two pages of image information equivalent to A6 size, SW1 and SW2 are image information transfer path switching switches, MCNT is an image information storage memory (IMA, IMB) control unit, COD is an encoding unit, MOD indicates a modulation unit, NCU indicates a network control unit, and TC indicates a main control unit. Here, the block elements added according to the present invention are only within the dashed line frame indicated by 12.

次に、各ブロツク間の信号線について示すと、1は読
取画信号、2は符号化画信号、3は変調画信号、4は伝
送路接続部、5は主制御部TC〜メモリ制御部MCNT、符号
化部COD、変調部MOD、網制御部NCU間の制御信号、6A,6B
は画情報蓄積メモリIMA,IMB夫々への書込み画信号、7A,
7Bは画情報蓄積メモリIMA,IMB夫々からの読出し画信
号、8は符号化部入力画信号、9は制御部MCNT〜画信号
読取部SCAN間の制御信号、10はメモリ制御部MCNT〜符号
化部COD間の制御信号、11A,11BはメモリIMA,IMB夫々の
アドレス制御信号を示す。第1図において、画信号はSC
AN→IMA/IMB→COD→MOD→NCUの経路で伝達される。
Next, the signal lines between the blocks will be described. 1 is a read image signal, 2 is an encoded image signal, 3 is a modulated image signal, 4 is a transmission path connection unit, 5 is a main control unit TC to a memory control unit MCNT. , Coding unit COD, modulation unit MOD, control signal between network control unit NCU, 6A, 6B
Indicates image signals to be written to the image information storage memories IMA and IMB, 7A,
7B is an image signal read from each of the image information storage memories IMA and IMB, 8 is an input image signal of the encoding unit, 9 is a control signal between the control unit MCNT and the image signal reading unit SCAN, and 10 is a memory control unit MCNT to encoding. Control signals 11A and 11B between the units COD indicate address control signals of the memories IMA and IMB, respectively. In FIG. 1, the image signal is SC
It is transmitted along the route of AN → IMA / IMB → COD → MOD → NCU.

次に、第2図、第3図を用いて、本発明による第1図
−12に示されるブロツクの動作について説明する。
Next, the operation of the block shown in FIG. 1-12 according to the present invention will be described with reference to FIGS.

第2図は、本発明によるA6サイズ相当の送信機が標準
G3機に対して送信する場合の画信号の処理方式を示した
ものであり、(a)は送信原稿が1ページの場合、
(b)は送信原稿が2ページの場合、(c)は送信原稿
が3ページの場合、さらに(d)は送信原稿が4ページ
の場合を夫々示し、何れの場合にも、標準G3機に対して
A6サイズ相当の1〜4ページ分を手順上の1ページとし
て伝送する。尚、主走査長は、相手機が標準G3機である
ために、1,728dot/line固定としている。一方、副走査
長は、A6サイズの長辺方向を3.85line/mmの解像度で分
解している最も標準的な場合を例示しており、従つて67
2line/A6サイズ長辺および1,144line/A4サイズ長辺とす
る。さらに、伝送原稿が4ページより多い場合には、何
れも、第2図の(a)〜(d)の処理の組み合せにより
処理を行う。例えば、送信原稿が23枚の場合には、受信
側である標準G3機の受信画は、第2図(d)の受信画が
5枚、さらに第2図(c)の受信画が1枚得られること
となる。
Fig. 2 shows the standard A6 size transmitter according to the present invention.
FIG. 7A shows a processing method of an image signal when transmitting to a G3 machine. FIG.
(B) shows the case where the transmitted manuscript is two pages, (c) shows the case where the transmitted manuscript is three pages, and (d) shows the case where the transmitted manuscript is four pages. In any case, the standard G3 machine for
One to four pages corresponding to the A6 size are transmitted as one page in the procedure. Note that the main scanning length is fixed at 1,728 dots / line since the partner machine is a standard G3 machine. On the other hand, the sub-scanning length illustrates the most standard case in which the long side direction of the A6 size is decomposed at a resolution of 3.85 lines / mm.
2line / A6 size long side and 1,144 line / A4 size long side. Further, when the number of transmitted originals is more than four pages, the processing is performed by a combination of the processings (a) to (d) in FIG. For example, when the number of originals to be transmitted is 23, the received image of the standard G3 machine on the receiving side includes five received images in FIG. 2D and one received image in FIG. 2C. Will be obtained.

次に、第3図のフローチヤートにより、本発明による
画信号の処理方式についての詳細を説明する。尚、第3
図の処理方式は、第2図に示す画面および第1図12のブ
ロツクと対応している。
Next, the details of the image signal processing method according to the present invention will be described with reference to the flowchart of FIG. The third
The processing method shown in the figure corresponds to the screen shown in FIG. 2 and the block shown in FIG.

第3図のフローチヤートは、一通信中における画情報
蓄積メモリ制御部MCNT、画情報蓄積メモリ(IMA、IMB)
の制御部の動作を中心に示す。先ず、原稿ページを示す
指標をi←0とする。次にi=0であるから、1ページ
目の原稿の有無を確認して、有れば、原稿を読取り乍ら
A6サイズの主走査長に相当する1〜864dotをメモリIMA
へ書込み、1ページ目の原稿を全て(3.85line/mmの解
像度の場合には、672line/A6サイズ長辺)メモリIMAへ
書込む。次に、2ページ目の原稿が無ければ、メモリIM
Aの865〜1,728dotへ全て白色信号を書込んだ後に、メモ
リIMAの画信号を読出して、符号化部CODへ転送して符号
化し、変調部MODにて変調し、さらに網制御部NCUを経て
伝送される。この場合の標準G3の受信画は第2図(a)
の様になる。
The flowchart in FIG. 3 shows the image information storage memory control unit MCNT and image information storage memory (IMA, IMB) during one communication.
Mainly shows the operation of the control unit. First, an index indicating a document page is set to i ← 0. Next, since i = 0, it is checked whether or not there is a document on the first page.
Memory IMA with 1 to 864 dots corresponding to the main scan length of A6 size
Then, the entire original on the first page is written into the memory IMA (672 lines / A6 size long side when the resolution is 3.85 lines / mm). Next, if there is no second page manuscript, the memory IM
After writing all the white signals to 865 to 1,728 dots of A, read the image signal of the memory IMA, transfer it to the encoding unit COD, encode it, modulate it with the modulating unit MOD, and further control the network control unit NCU. Transmitted via The received image of standard G3 in this case is shown in Fig. 2 (a).
It becomes like.

一方、2ページ目の原稿が有る場合には、メモリIMA
の865〜1,728dotへ2ページ目の原稿の読取り画情報が
書込まれた後に、次に3ページ目の原稿の有無が確認さ
れ、無ければ、メモリIMAに蓄積されている1ページ目
と2ページ目の画信号が同時に読出されて、符号化部CO
Dへ転送されて伝送される。この場合の受信画は、第2
図(b)の様になる。
On the other hand, if there is a manuscript for the second page,
After the read image information of the second page document is written in 865 to 1,728 dots of the second page, the presence or absence of the third page document is checked. If there is no document, the first page and the second page stored in the memory IMA are determined. The image signals of the page are read at the same time, and the
Transferred to D and transmitted. The received image in this case is the second
The result is as shown in FIG.

さらに、3ページ目あるいは4ページ目の原稿は、メ
モリIMBへ蓄積されて、A6サイズ4ページ相当分を手順
上の1ページ分としてメモリIMAとIMBを連続的に読出し
て符号化部CODへ転送して伝送される。この場合の受信
画は第2図(c)あるいは(d)の様になる。
Further, the third or fourth page of the original is stored in the memory IMB, and the IMA and IMB are continuously read out and transferred to the encoding unit COD with the equivalent of four pages of A6 size as one page in the procedure. Transmitted. The received image in this case is as shown in FIG. 2 (c) or (d).

もし、送信原稿が4ページより多い場合には、ページ
を示す指標i←i+4とした上で、全く同様の処理が繰
り返し実行されることになる。
If the number of transmitted originals is larger than four pages, exactly the same processing is repeatedly executed after setting the index i ← i + 4 indicating the page.

発明の効果 以上説明した様に、本発明によれば、従来のA6サイズ
相当の原稿を送信するフアクシミリ装置に対して、画信
号を蓄積するメモリとその制御部を追加することによ
り、下記の問題点を解決できる効果が得られる。
Effects of the Invention As described above, according to the present invention, the following problems can be solved by adding a memory for storing image signals and its control unit to a conventional facsimile apparatus that transmits an original of A6 size. The effect of solving the point is obtained.

第1は、冗長な白信号を付加せずに伝送することが可
能となる為に、伝送時間を短縮できる効果がある。例え
ば、A6サイズ4ページ分を伝送した場合を例として比較
すると、画情報の伝送時間の短縮分として、0〜15秒、
一方、ページ間の手順信号が無くなる為に、その短縮分
として約7秒、併せて、7〜22秒程度の伝送時間短縮の
効果がある。
First, since transmission can be performed without adding a redundant white signal, the transmission time can be shortened. For example, comparing the case of transmitting four pages of A6 size as an example, as a reduction of the transmission time of image information, 0 to 15 seconds,
On the other hand, since there is no procedural signal between pages, there is an effect of shortening the transmission time by about 7 seconds as well as about 7 to 22 seconds.

第2は、副次的効果として、受信側の記録紙の無駄が
少なくなる効果がある。
Second, as a secondary effect, there is an effect that waste of recording paper on the receiving side is reduced.

【図面の簡単な説明】[Brief description of the drawings]

第1図は本発明によるフアクシミリ装置送信部のブロツ
ク構成図、第2図は本発明によるフアクシミリ画信号処
理方式の説明図、第3図は本発明によるフアクシミリ画
信号処理の制御フローチヤート、第4図は従来の方式に
よるフアクシミリ画信号処理方式の説明図である。 SCAN……画信号読取部、IMA,IMB……画情報蓄積メモ
リ、MCNT……画情報蓄積メモリ制御部、TC……主制御
部、COD……符号化部、MOD……変調部、NCU……網制御
FIG. 1 is a block diagram of a facsimile apparatus transmitting unit according to the present invention, FIG. 2 is an explanatory diagram of a facsimile image signal processing system according to the present invention, FIG. 3 is a control flow chart of facsimile image signal processing according to the present invention, and FIG. FIG. 1 is an explanatory diagram of a facsimile image signal processing method according to a conventional method. SCAN: Image signal reading unit, IMA, IMB: Image information storage memory, MCNT: Image information storage memory control unit, TC: Main control unit, COD: Coding unit, MOD: Modulation unit, NCU … Network controller

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】ISO A6サイズ相当の原稿を送信するフアク
シミリ装置において、相手受信機がCCITT T30、T4勧告
に従うところの標準G3機と認識する手段と、A6サイズ相
当の読取画信号を2ページ分蓄積する少なくとも2個の
蓄積手段と、相手機が標準G3機と認識された場合に限り
A6サイズ相当の4ページ迄を手順上の1ページとして伝
送すべく前記読取画信号蓄積手段を制御する手段とを有
することを特徴とするフアクシミリの画信号処理方式。
1. A facsimile apparatus for transmitting a document equivalent to ISO A 6 size, a means for a partner receiver to recognize a standard G3 device conforming to CCITT T30 and T4 recommendations, and a read image signal equivalent to A6 size to two pages. At least two storage means to store the data, and only if the other device is recognized as a standard G3 device
A facsimile image signal processing system, comprising means for controlling said read image signal storage means to transmit up to four pages of A6 size as one page in the procedure.
JP62280234A 1987-11-05 1987-11-05 Facsimile image signal processing method Expired - Lifetime JP2569619B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62280234A JP2569619B2 (en) 1987-11-05 1987-11-05 Facsimile image signal processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62280234A JP2569619B2 (en) 1987-11-05 1987-11-05 Facsimile image signal processing method

Publications (2)

Publication Number Publication Date
JPH01122265A JPH01122265A (en) 1989-05-15
JP2569619B2 true JP2569619B2 (en) 1997-01-08

Family

ID=17622169

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62280234A Expired - Lifetime JP2569619B2 (en) 1987-11-05 1987-11-05 Facsimile image signal processing method

Country Status (1)

Country Link
JP (1) JP2569619B2 (en)

Also Published As

Publication number Publication date
JPH01122265A (en) 1989-05-15

Similar Documents

Publication Publication Date Title
US4814890A (en) Image communicating system
EP0201772B1 (en) Facsimile apparatus
US6982806B2 (en) Facsimile apparatus, control method for facsimile apparatus, and computer-readable storage medium storing control program for facsimile apparatus
JP2569619B2 (en) Facsimile image signal processing method
JP2701152B2 (en) Control method for facsimile machine
JPH07298016A (en) Image forming device
JPS5992665A (en) Facsimile equipment with monitor print
JP2745447B2 (en) Facsimile communication method
JPS6074769A (en) Facsimile communication system
JPH0244851A (en) Facsimile equipment
JP2662407B2 (en) Image processing method
JP3391256B2 (en) Facsimile machine
JPH0884229A (en) Image forming device
JPH01161968A (en) Control system for facsimile equipment
JPH033564A (en) Facsimile equipment
JPH04188945A (en) Facsimile equipment
JPH0349226B2 (en)
JPH0355966A (en) Facsimile equipment
JPS6065662A (en) Facsimile communication system
JP2003224694A (en) Communication terminal device equipped with remote copying function
JPH0153536B2 (en)
JPS627260A (en) Facsimile transmitter
JPH01144777A (en) Facsimile receiver
JPS63117560A (en) Facsimile equipment
JPH0435462A (en) Picture communication equipment

Legal Events

Date Code Title Description
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20071024

Year of fee payment: 11

EXPY Cancellation because of completion of term
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081024

Year of fee payment: 12

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081024

Year of fee payment: 12