JPS5830270A - Facsimile receiver - Google Patents

Facsimile receiver

Info

Publication number
JPS5830270A
JPS5830270A JP56129235A JP12923581A JPS5830270A JP S5830270 A JPS5830270 A JP S5830270A JP 56129235 A JP56129235 A JP 56129235A JP 12923581 A JP12923581 A JP 12923581A JP S5830270 A JPS5830270 A JP S5830270A
Authority
JP
Japan
Prior art keywords
line
signal
sent
picture signals
memory
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.)
Granted
Application number
JP56129235A
Other languages
Japanese (ja)
Other versions
JPS6156658B2 (en
Inventor
Masanori Okamoto
岡本 政憲
Hiroyuki Nomura
野村 浩幸
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Tottori Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
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 Tokyo Sanyo Electric Co Ltd, Tottori Sanyo Electric Co Ltd, Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP56129235A priority Critical patent/JPS5830270A/en
Publication of JPS5830270A publication Critical patent/JPS5830270A/en
Publication of JPS6156658B2 publication Critical patent/JPS6156658B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa

Abstract

PURPOSE:To detect a slip of an original at the transmitter side, by making an arrangement that picture signals of one line are stored and picture signals of the n-th line from the line of the stored picture signals are compared with the stored picture signals, and when they coincide with each other, an alarm is given. CONSTITUTION:Picture information signals arrived through a telephone line, etc., are introduced into a terminal 1 and sent to a picture signal extractor 2. At the extractor 2, only picture signals are fetched and sent to one line memory. When picture signals of one line, namely, one main scanning, are accumulated in a line memory 4, picture signals of the next line are sent to another line memory 3 based on the instruction from a controlling circuit 12, and the picture signals stored in the line memory 4 are sent to a printing register 5. At this time, the picture signals sent to the memory 3 are compared with those delivered from the memory 4 at a comparator 7, and, when they completely coincide with each other, the comparator 7 puts out the output. When they do not coincide, the comparator does not put out the output. When the output is putted out, an alarm is given so that it is easily detected that the original slips at the transmitter side.

Description

【発明の詳細な説明】[Detailed description of the invention]

本蓼明は受信側で送信側の原稿送りミスを検知できるフ
ァクシミリ受信機に関する。 従来・ファクシミリ差信機において,原稿の読取が平面
走査型式である時には,原稿をローラ等で移動させ,特
定個所(線分)を横切る時に原稿を読み取って一信号処
理をしていた。ところがこのような場合,原稿がスリッ
プして同じ所を何回も走査してしまう事があり,その時
は受信側では間伸びした記録をしてしまうが、その原稿
のスリツプ状即が時にはひどく,原稿送りがほとんどな
されない事があり、そのような時には,受信側ではすだ
れ模様を延々と記録する,しかも、近年不在者逆信や不
在者受信の機能を有したファクシミリ装置が増加してい
るので,上述のような誤動作が生じた時には記録紙がな
くなるまで印字されることすらあろう 本発明は上述の点を考慮してなされたもので。 以下実施例に基づいて本発明を詳細に説明する。 第1図は本発明の一実施例を示すファクシミリマ゛ 受4!機のブロック図、(1)は電話器に接続された回
纏制iw聳m等から1借した信号を受けとる端子で・(
2)はその着信した信号の信号歪補正を行ない同期信号
を分離して画信号をとり出す画信号抽出器である.(3
)+4)はラインメモリで1行分の一信号を記゛憶でき
る容量をもち,一方のラインメモリに瞥込んでいる時は
他方のラインメモリからは自由に続出しができ、2つの
ラインメモリに交互に書キ込まれる様に制御回路(後述
)で制御される。(6)は印字レジスタで、ラインメモ
リ+3)(4)から送られてきた一信号を一時蓄え、適
当な速度でプリンタ(6)審:送り出して印字させる。 C7)は比較器で、ラインメモリ(3)(4)の一方に
書込まれる一信号と他方から続出される一信号のそれぞ
れ1行分を比較し、一致したら一致信号を出す。(8)
はカウンタで、比較器(7)の出力がIIIIIlする
とその回数をカウントし。 一定時間以上とぎれるとリセットする。そして・そのカ
ウント量が40を越すと出方を出す。(9)は−仕分の
99.5fi以上が全て白又は全て黒であるかどうかを
判定する同一色判定器である。■はアンドゲート、■は
警報回路である。aaはラインメモすC3)(4)やレ
ジスタの選択やアドレッシング、各種警報の処理を行な
う制御回路である。 次に・上述の構成のファクシミリ受信機において動作を
説明する。電話回線等を通じて着信した画情報信号(M
l信号や同期信号等)が端子(11に導入され一信号抽
出器(2)に送られ、そこで1信号だけとり出されて一
方のラインメモす(例えば
This invention relates to a facsimile receiver that allows the receiving side to detect document feeding errors on the sending side. In conventional facsimile transceivers, when the document was scanned using a plane scanning method, the document was moved using rollers, etc., and when it crossed a specific point (line segment), the document was read and a single signal was processed. However, in such cases, the original may slip and the same area is scanned over and over again, and in this case, the receiving side records a long recording, but the slippage of the original is sometimes severe. There are times when the document is hardly sent, and in such cases, the receiving side records the blind pattern endlessly.Furthermore, in recent years, facsimile machines with functions such as reverse call and absentee reception have been increasing. , when the above-mentioned malfunction occurs, printing may even continue until the recording paper runs out.The present invention has been made in consideration of the above-mentioned points. The present invention will be described in detail below based on Examples. FIG. 1 shows a facsimile receiver 4 showing an embodiment of the present invention. In the block diagram of the machine, (1) is the terminal that receives the signal borrowed from the circuit connected to the telephone.
2) is an image signal extractor that corrects the signal distortion of the incoming signal, separates the synchronization signal, and extracts the image signal. (3
)+4) has the capacity to store one signal for one line in the line memory, and when you are looking at one line memory, you can freely continue reading from the other line memory, and the two line memories can be stored. It is controlled by a control circuit (described later) so that the data is written alternately. (6) is a print register that temporarily stores the signal sent from line memory +3 (4) and sends it to the printer (6) at an appropriate speed for printing. C7) is a comparator that compares one line of one signal written in one of the line memories (3) and (4) with one signal successively output from the other, and outputs a match signal if they match. (8)
is a counter, which counts the number of times when the output of the comparator (7) reaches IIIl. It will be reset if it is interrupted for a certain period of time. And, when the count exceeds 40, the outcome will be announced. (9) is a same color determination device that determines whether 99.5fi or more of the -sort are all white or all black. ■ is an AND gate, and ■ is an alarm circuit. aa is a control circuit that performs line memo C3) (4), register selection and addressing, and various alarm processing. Next, the operation of the facsimile receiver having the above configuration will be explained. Image information signals (M
l signal, synchronization signal, etc.) is introduced into the terminal (11) and sent to the one signal extractor (2), where only one signal is extracted and one line memo (e.g.

【4)】に送られる。−信号
の1行分すなわちl主走査分の画信号がラインメモリ(
4)に蓄えられると、制御回路(2)の指示にもとづい
てラインメモリ+Jl)の方へ次の1行の1信号が送ら
れ、ラインメモ9(4)(:49えられた一信号は印字
レジスタ(5)に送られる。この時、ラインメモリ(3
0ニ送られる一信号とラインメモ!j (4)から出て
いく画信号は比較器(7)で比較され、その両者が完全
に等しければ出力を出し、異なっていれば出力を出さな
い。この画信号の送授が終ると、印字レジスタ(5)の
内容がプリンタ(6)で印字され、ラインメモ!l (
3X4)が切換られ、@3行目は画信号抽出器(!)か
らラインメモリ(4)へ送られ。 第2行目はラインメモリ(3)から印字レジスタ(5)
に送られる。このようにして順次II(it号が処理さ
れるが、ラインメモリ(3H41に入っている画信号と
出てくる一信号とが一致していれば比較器(7)から出
力が発生し、その出力が40行分(走査線密度が3、8
51f/wgws、とじて約101相当)続いた場合、
異常とみなして警報回路0を動作させ、オペレータを呼
び出すと共に、制御回路■に異常信号を与える。そして
、FJ1140行分同−と仕分された時制御回路■は受
信を中止させる。これらの判定において40行中1行だ
け異なっていた場合、その1行は伝送誤まりとみなしカ
ウンタ(8)はリセットしない。尚、原稿が余白(即ち
白地送信)の時。 および写真等の場合は同−一信号が1眞以上にわたって
同一である事がしばしばあるので%画信号が全白・全黒
および全白に罫線があるとみなされる状襲は異常でない
とみなすう従って聞−色判定@ (11)では1行分の
一信号の99.5−以上が目−色であれば・L・出力を
出し、アンドゲート■を閉じてカウンタ(8)の出力を
無視させる。 112図は本発明の他の実施例を示すファクシミリ受[
JIのブロック図で、第1図の場合は一信号がそのまま
扱えたのに対し、この例では符号化されて送られてきた
場合を例にとる。cIIJFXI11図と目様C;信号
を受は取る端子で、CDは符号化された一信号(以後−
情報という)を受信信号から抜き出す一情報抽出器、(
至)は画情報抽出器で抜き出した画情報を一時蓄えるバ
ッフアメそりである。@鋺(至)はそれぞれ1行分の1
信号を蓄えるラインメモリで、 e!11Bはマルチプ
レクサである。@四はそれぞれ画情報を画信号に復号化
する時の復号ラインアドレスカウンタ、参照ラインアド
レスカウンタ(符号化が二次元の時)である、(至)は
印字レジスタ、(至)は変化点検出回路である。に)は
1行分のIII信号の一致を判定する比較回路で、1行
分のラインメモリも内跋している。%(至)は制御回路
、鱒は警報回路である。 まずこの構成における画情報と画信号の流れを説明する
。受1された信号は端子員から導入され画情報抽出器(
2)で歪補正され他の信号と分離されたのちバッファメ
モリυに導入される。このノ1ツ7アメモ5(至)に蓄
えられた画情報(符号例)を特定のクロックで呼び出し
、復号テーブルC図示せず)を参照する事で復号化2値
信号(画信号)を得、マルチプレクサ翰を通ってライン
メモリ(至)嚇iのうちの】つに書込む。これは111
図の場合と同様に循環的に1行毎に次のラインメモリ@
(至)(2)に書込まれ、書込中でないラインメモリの
1つからはマルチプレクー鋤を通して印字レジスタ(至
)に−信号を送る。ところでこれは1次元符号化信号の
場合であるが%2次元の時は復号化にあたっては、参照
ラインとなるべきラインメモリの内容から黒→白又は白
→黒の変化点を変化点検出回路(至)。 で検出し、その備所を制御回路に導いて復号化に用いる
。これらの復号化、参照、各ラインメモリへの書込/読
出はすべて所足のクロックで制御するため、ラインメ叱
す・a4@Lj復号化ラインアドレスカクンタ(2)と
参照ラインアドレスカウンタ翰5:よって歩進させる。 バッファメモリーからマルチプレクチ(至)に信号授受
する際、制御回路(至)では1情報又は1信号からその
信号葛:含まれる画信号の数と黒信号の数を針数比較し
そのほとんどが同一色かどうかを判断する。これは前述
の同一色判定器に相当するが、−信号が符号例となって
いるため全白C又は全黒およびそれに準するもの)の復
号テーブルにマーりをつけ、その復号テーブルが参照さ
れたか否かを監視しておけば容易に判断される。そして
同一色でない場合には200行毎C走査線密賀が3.8
5本/寓菖として約5.21相当)に比較回路(至)に
信号を送る。比較回路(至)では、この信号によりマル
チプレクーteaから印字レジスタ(至)に出ようとし
ている1行分の画信号を内蔵するラインメモリにとり込
み、それとマルチプレクサ(至)を通ってラインメモリ
ts→l:書込まれIうとする1行分の画信号と比較す
る。その両者が異なる時は比較回路(2)はそのまま比
較動作を終了するが、等しい時は制御回路(至)に−散
信号を送る。−散信号を受けた制御回路(2)は次の2
00行を待たずに信号を発生し再び比較させる事によっ
て前記一致が偶然か否かを判定させる。そして再び一致
信号を受けた時は異常とみなし警報回路(至)にてtペ
レータに報知したり受信を中断させたりする。 即ち111図の例においては毎行比較し一定長さ以上同
一画であれば異常としたのC:対し、112図の例では
一定行毎に比較し続けて同一画であれば異常とした。尚
いずれも検出間隔(fNlgで]傷後者で5・20IL
)は通常書かれる文字大きさく5mm乃至13mm)又
は罫線間隔(7mm前後)の整数倍とならない方がよい
。 以上の如く本発明は1着信した信号から1行分の画信号
を記録する記憶回路と、その記憶回路に記憶した画信号
のル行後C但し亀は自然数)の画信号と記憶回路に記憶
した一信号とを比較する比較器と、比較器が両者の一致
を判断した時に警報容具C:検出し警報できる。 のブロック因、IIz図は本発明の他の実施例の7アク
Vミリ受信機のブロック図である。 111翰・・・端子、(2)■・・・画信号C画情豐)
抽出器。 (3)(4)(至)−(2)・・・ラインメモリ、(6
)翰・・・印字レジスタ・イア)(至)・・・比較器C
回路) 、 +8)−・カクンタ、(9)・・・同−色
判足器、all@・・・警報回路、01J@−・・制御
回路、@勿・・・マルチプレクサ。
[4)] will be sent to. - The image signal for one line of the signal, that is, for one main scan, is stored in the line memory (
4), one signal of the next line is sent to the line memory + Jl) based on the instruction from the control circuit (2), and the one signal obtained in line memo 9 (4) (:49) is sent to the line memory + Jl). It is sent to the print register (5).At this time, the line memory (3)
One signal and line memo sent! The image signals coming out from j (4) are compared by a comparator (7), and if they are completely equal, an output is produced, and if they are different, no output is produced. When the transmission of this image signal is completed, the contents of the print register (5) are printed by the printer (6), and the line memo! l (
3X4) is switched, and the @3rd line is sent from the image signal extractor (!) to the line memory (4). The second line is from the line memory (3) to the print register (5)
sent to. In this way, II (it) is processed sequentially, but if the image signal in the line memory (3H41) and the output signal match, an output is generated from the comparator (7), and Output is 40 lines (scanning line density is 3, 8)
51f/wgws, equivalent to approximately 101) if continued,
It is assumed that there is an abnormality, and the alarm circuit 0 is operated to call the operator, and an abnormality signal is given to the control circuit (2). Then, when the FJ1140 rows are sorted as same-, the control circuit (2) stops the reception. If only one line out of 40 lines is different in these judgments, that line is considered to be a transmission error and the counter (8) is not reset. In addition, when the original has blank spaces (i.e., blank sending). In the case of photographs, etc., the same signal is often the same for more than one square, so situations in which the percentage image signal is considered to be all white, all black, and all white with ruled lines should be considered normal. Therefore, in the color judgment @ (11), if the color of one signal for one line is 99.5 or more, it outputs an L output, closes the AND gate ■, and ignores the output of the counter (8). let Figure 112 shows a facsimile receiver [
In the block diagram of JI, in the case of FIG. 1, one signal could be handled as it is, whereas in this example, the case where it is encoded and sent is taken as an example. cIIJFXI11 Figure C; The terminal that receives the signal is the terminal that receives the signal, and the CD is the terminal that receives the encoded signal (hereinafter -
An information extractor, which extracts information (referred to as information) from the received signal;
) is a buffer that temporarily stores the image information extracted by the image information extractor. @Each (to) is 1 line.
With line memory that stores signals, e! 11B is a multiplexer. @4 is the decoding line address counter and reference line address counter (when encoding is two-dimensional) when image information is decoded into an image signal, (to) is the print register, and (to) is the change point detection It is a circuit. 2) is a comparison circuit that determines whether the III signals for one row match, and also includes a line memory for one row. % (to) is a control circuit, and trout is an alarm circuit. First, the flow of image information and image signals in this configuration will be explained. The received signal is introduced from the terminal member and sent to the image information extractor (
After distortion correction and separation from other signals in step 2), the signal is introduced into the buffer memory υ. A decoded binary signal (image signal) is obtained by calling the image information (example code) stored in this No. 17 Amemo 5 (to) at a specific clock and referring to the decoding table C (not shown). , writes to one of the line memories (to) i through the multiplexer. This is 111
As in the case of the figure, the next line memory @
(to) (2) and one of the line memories that is not being written sends a - signal to the print register (to) through the multiplexer. By the way, this applies to a one-dimensional encoded signal, but when decoding a two-dimensional signal, a change point detection circuit ( to). The data is detected by the controller, and the data is sent to the control circuit for decoding. Since all of these decoding, references, and writing/reading to and from each line memory are controlled by sufficient clocks, the line memory a4@Lj decoding line address counter (2) and reference line address counter 5 are used. : Therefore, advance. When sending and receiving signals from the buffer memory to the multiplexer (to), the control circuit (to) uses one piece of information or one signal to compare the number of included image signals and the number of black signals, and determines that most of them are the same. Determine whether the color This corresponds to the same color determiner described above, but since the - signal is a code example, it marks the decoding table for all white C or all black and similar), and that decoding table is referenced. It is easy to determine whether or not it has been achieved by monitoring. And if the colors are not the same, the C scanning line distance per 200 lines is 3.8
A signal is sent to the comparison circuit (to) to 5 lines (equivalent to approximately 5.21 as an irises). In the comparison circuit (to), the image signal for one line about to be output from the multiplexer tea to the print register (to) is taken into the built-in line memory by this signal, and it is passed through the multiplexer (to) to the line memory ts→ l: Compare with the image signal of one line to be written. If they are different, the comparison circuit (2) ends the comparison operation, but if they are equal, it sends a -dispersion signal to the control circuit (to). - The control circuit (2) receiving the scattered signal is as follows:
By generating a signal without waiting for line 00 and making the comparison again, it is determined whether or not the coincidence is a coincidence. When a coincidence signal is received again, it is regarded as an abnormality, and the alarm circuit (to) notifies the operator or interrupts reception. That is, in the example shown in FIG. 111, every line is compared, and if the same image is longer than a certain length, it is determined to be abnormal. On the other hand, in the example shown in FIG. In both cases, the detection interval (in fNlg) is 5.20 IL for the latter.
) should not be an integral multiple of the normally written character size (5 mm to 13 mm) or the ruled line spacing (around 7 mm). As described above, the present invention includes a memory circuit that records image signals for one line from one incoming signal, and image signals stored in the memory circuit that are stored in the memory circuit. A comparator compares the two signals, and when the comparator determines that the two match, alarm container C: can be detected and an alarm can be issued. Figure IIz is a block diagram of a 7A Vmm receiver according to another embodiment of the present invention. 111 wire... terminal, (2) ■... image signal C image information)
extractor. (3) (4) (to) - (2)... line memory, (6
) 翰...Print register ear)(To)...Comparator C
circuit), +8)-・Kakunta, (9)... Same-color foot device, all@... Alarm circuit, 01J@-... Control circuit, @Of course... Multiplexer.

Claims (1)

【特許請求の範囲】 イ1)  着信した信号から1行分の一信号を抽出して
記憶する記憶回路と、その記憶回路に記憶したW信号の
滲行後(但し路は自然数]の一信号と記憶回路に記憶し
た画信号とを比較する比較器と。 比較器が両者の一致を判断した時に警報を発する警報手
段とを有する事を特徴とするファクシミリ受信a11゜ +2>  fill記比較器は一信号がいずれもほとん
ど白信号(又は黒信号)の時は一致判断結果を無効とす
る手段を具備した事を特徴とする特許の範囲111項記
載のファクシミリ受信機。
[Scope of Claims] A1) A memory circuit that extracts and stores one signal for one line from an incoming signal, and one signal after the W signal (where the path is a natural number) stored in the memory circuit has been blurred. and an image signal stored in a storage circuit, and an alarm means for issuing an alarm when the comparator determines that the two match. The facsimile receiver according to the scope of the patent, item 111, characterized in that the facsimile receiver is equipped with means for invalidating the coincidence determination result when all signals are almost white (or black).
JP56129235A 1981-08-17 1981-08-17 Facsimile receiver Granted JPS5830270A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56129235A JPS5830270A (en) 1981-08-17 1981-08-17 Facsimile receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56129235A JPS5830270A (en) 1981-08-17 1981-08-17 Facsimile receiver

Publications (2)

Publication Number Publication Date
JPS5830270A true JPS5830270A (en) 1983-02-22
JPS6156658B2 JPS6156658B2 (en) 1986-12-03

Family

ID=15004511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56129235A Granted JPS5830270A (en) 1981-08-17 1981-08-17 Facsimile receiver

Country Status (1)

Country Link
JP (1) JPS5830270A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5285290A (en) * 1988-07-28 1994-02-08 Canon Kabushiki Kaisha Image storing with data compression to accommodate memory capacity

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63168449U (en) * 1987-04-23 1988-11-02

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151018A (en) * 1974-05-22 1975-12-04
JPS5473511A (en) * 1977-11-25 1979-06-12 Nec Corp Transmission error detector device for facsimile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151018A (en) * 1974-05-22 1975-12-04
JPS5473511A (en) * 1977-11-25 1979-06-12 Nec Corp Transmission error detector device for facsimile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5285290A (en) * 1988-07-28 1994-02-08 Canon Kabushiki Kaisha Image storing with data compression to accommodate memory capacity

Also Published As

Publication number Publication date
JPS6156658B2 (en) 1986-12-03

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