JPS5848584A - Still picture transmitter - Google Patents
Still picture transmitterInfo
- Publication number
- JPS5848584A JPS5848584A JP56147394A JP14739481A JPS5848584A JP S5848584 A JPS5848584 A JP S5848584A JP 56147394 A JP56147394 A JP 56147394A JP 14739481 A JP14739481 A JP 14739481A JP S5848584 A JPS5848584 A JP S5848584A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- transmission
- pseudo
- test mode
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
Description
【発明の詳細な説明】 本発明紘静止画僚伝送装置に関する。[Detailed description of the invention] The present invention relates to a still image transmission device.
従来、静止画像伝送装置が正常に動作しているかの試験
を行うには送信機でテレビジ冒ンカメツの入力を入れて
動作させるとか、アドレスパルス信号を直接メモリーに
記憶させて静止画像に変換させ動作の確認を行なってい
た。Conventionally, in order to test whether a still image transmission device is working properly, it is necessary to operate the transmitter by inputting the TV input, or by directly storing the address pulse signal in memory and converting it into a still image. was being confirmed.
さらに伝送試験を行なうために杜、もう一台の静止画像
伝送装置の受信機を用意して言わゆるパックツバ゛ツク
（ＢａｃｋｔｏＢａｃｋ）で接続して動作の確認を行な
りていた。しかし以上の方法では装置の運用裸守に手間
がかかシ過ぎる欠点があった。Furthermore, in order to perform a transmission test, Mori prepared another receiver for a still image transmission device and connected it in a so-called back-to-back manner to check its operation. However, the above method has the disadvantage that it takes too much time and effort to monitor the operation of the device.
本発明の目的は従来の欠点を除いて、極めて簡単に試験
ができる静止画像伝送装置を提供する仁とである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a still image transmission device that is extremely easy to test, without the drawbacks of the prior art.
本発１ＩｌｌＫよれば、静止画像伝送装置の送信回路部
に内蔵してい名り−ツク信号又紘アドレス信号によシ８
ビット程度の周波数カウンターを動作させて、その出力
信号をＤ−Ａｌンパータで鋸歯状波又は階段波等の擬似
アナ調グ信号に変換して送信回路部のテレビジ曹ンカメ
ツ人力に切換えて接続できるようｋする。そして静止画
像伝送装置の受信回路部にてテストモードの切換スイッ
チを設け、り峰−トチスト噌−ドに切換えて送信部に対
してす令−トコント四−ルを行なりてヴモートテストモ
ードの指示信号を送出してやる、次に送信回路ではこの
信号を検出し、擬似信号をメモリーに記憶して、受信機
に静止画像伝送をさせて折〕返し試験を行なう仁とによ
〕自己診断が極めて容易に行なえる静止画像伝送装置が
得られる。According to the present invention, 8.
Operates a bit-sized frequency counter, converts its output signal into a pseudo analog signal such as a sawtooth wave or staircase wave using a D-Al amplifier, and then connects it to the television set in the transmitting circuit. k. Then, a test mode selector switch is provided in the receiving circuit section of the still image transmission device, and the mode is switched to the remote mode, and commands and controls are given to the transmitting section to switch to the remote test mode. An instruction signal is sent out, and then the transmitting circuit detects this signal, stores the pseudo signal in memory, and has the receiver transmit a still image to perform a repeat test.This method is extremely useful for self-diagnosis. A still image transmission device that can be easily implemented is obtained.
本発明による静止画像伝送装置の構成において社、通常
の回路構成に加えて、ｔず受信部Ｋａ自己試験令−ドに
するテストそ−ド切換スイッチと、送信部の擬似信号発
生回路を入力回路に接続させその信号をメそり−に記憶
させて静止画像伝送させる一連の動作を遠隔制御するた
めの遠隔制御送信回路とを真備し、送信部に紘遠隔信号
を受信して送信回路を自己試験場−ドに設定するための
遠隔信号受信回路と擬似信号発生回路と、その信号を画
像入力回路に切換るためのスイッチ回路とを＾傭してい
る。In the configuration of the still image transmission device according to the present invention, in addition to the usual circuit configuration, a test code changeover switch for setting the receiving unit to self-test mode, and a pseudo signal generation circuit of the transmitting unit are added to the input circuit. It is equipped with a remote control transmission circuit for remotely controlling a series of operations in which the signal is stored in the memory and transmitted as a still image. - A remote signal receiving circuit and a pseudo signal generating circuit are used to set the mode, and a switch circuit is used to switch the signal to the image input circuit.
次に本発明の一実施例の図面を参照して本発明の詳細な
説明する。第１図は本発明の一実施例を示す図であシ、
送・受兼用形の静止画像伝送装置の構成を示している。Next, the present invention will be described in detail with reference to the drawings of an embodiment of the present invention. FIG. 1 is a diagram showing an embodiment of the present invention.
This figure shows the configuration of a still image transmission device that can be used for both sending and receiving.
端子麿、はカメラ入力で複数本である。ｌａ複数のカメ
ラ入力を１本に迦択切替する永めの閣僚信号切替回路と
増幅回路である。との出力をカメラ入力信号又は擬似画
像信号発生回路２０からの信号を選択切替する切替回路
２で、テストモード設定部１９からテストモード胃−カ
ル、に設定された時リレーが動作することによル擬似画
像信号発生回路２０側に切替えられる。３は閣僚信号処
理回路で同期信号分離回路、ＡＧＣ回路等を含んでいる
。４紘アナ四グ一デジタル変換回路で画像信号を６ビツ
ト／１ワード又は８ビツト／１ワードのデジタル信号に
変換する。Terminal Maro has multiple camera inputs. This is a long cabinet signal switching circuit and amplifier circuit that selects and switches multiple camera inputs into one. The switching circuit 2 selects and switches the output from the camera input signal or the signal from the pseudo image signal generation circuit 20, and when the test mode is set from the test mode setting section 19 to the test mode Stomach-Cal, the relay operates. is switched to the pseudo image signal generation circuit 20 side. 3 is a cabinet signal processing circuit that includes a synchronization signal separation circuit, an AGC circuit, etc. The image signal is converted into a 6-bit/1-word or 8-bit/1-word digital signal using a 4-channel digital conversion circuit.
制御回路７から送信の制御が行なわれるとメモリー回路
５に１フイールド又は１フレームのデジタル画像信号を
記憶する。アドレス回路６はメモリー回路５にアドレス
パルスを供給した夛り四ツク信号を発生する。変調回路
９はメモリー５から読み出された低速度の静止画像信号
をアナｐグ信号に変換するアナ四グーデジタル変換回路
とその信号をＦＭ等の変調をして、さらに伝送制御回路
送信１１％１０からの送信制御のデータ信４＃も合わせ
てＦ８に等の変調を行なう回路も含んでいる。１２は一
一ルカテストモードの時に内部で折シ返すために切替回
路、１３は２線式又紘４線式の選択回路、１４．１５は
変成器で端子すは線路出力、そして端子Ｃは線路入力端
子である。復調回路１６紘伝送されて来た信号から制御
データを復調分離して、伝送制御受信回路１１へ送シ又
低速度のアナ四グ静止画偉信号を復調しアナログ−デジ
タルデータに変換する回路を含んでいる。このデジタル
信号は伝送制御受信回路１１にで受信制御データから解
読した書き込み指示記号によ）メモリー回路５に順次記
憶させる。メモリー回路５の読み出し側は常時テレビジ
曹ン速度で読み出されているのでそのデータをテレビジ
１ン速度のデジタル−アナ四グ変換回路１７でテレビジ
■ン静止画像信号に変換して画像増幅回路１８で同期信
号を付加し増幅して端子ｄから出力する。When transmission is controlled by the control circuit 7, one field or one frame of digital image signal is stored in the memory circuit 5. The address circuit 6 generates a four-way signal which supplies address pulses to the memory circuit 5. The modulation circuit 9 includes an analog-to-digital conversion circuit that converts the low-speed still image signal read out from the memory 5 into an analog/pg signal, modulates the signal to FM, etc., and further transmits the signal to a transmission control circuit (11%). It also includes a circuit for modulating the transmission control data signal 4# from 10 to F8. 12 is a switching circuit for switching back internally during the 11-car test mode, 13 is a 2-wire or 4-wire selection circuit, 14.15 is a transformer, and terminal C is a line output. This is a line input terminal. Demodulation circuit 16 A circuit that demodulates and separates the control data from the transmitted signal and sends it to the transmission control receiving circuit 11. It also demodulates the low-speed analog/4G still image signal and converts it into analog-digital data. Contains. This digital signal is sequentially stored in the memory circuit 5 (by the write instruction symbol decoded from the received control data by the transmission control receiving circuit 11). Since the readout side of the memory circuit 5 is always read out at the television speed, the data is converted into a television still image signal by the digital-to-analog conversion circuit 17 at the television speed 17, and then sent to the image amplification circuit 18. A synchronizing signal is added at , amplified, and output from terminal d.
次に受信側から送信側を遠隔制御して送信部に擬似画像
信号をメモリーに記憶させて送信させる自己診断機能に
ついて説明する。まず受′信側ではテストモード設定部
１９でＩオフｌから′リモートｕに切替えて制御回路７
０押ｌタンをり毫−ト（ＲＩＭ）、次に送信（ＴＸ）と
押すことによ）。Next, a self-diagnosis function that remotely controls the transmitting side from the receiving side and causes the transmitting section to store a pseudo image signal in the memory and transmit it will be explained. First, on the receiving side, the test mode setting section 19 switches from I off l to remote u, and the control circuit 7
(by pressing the 0 button, RIM, then Send (TX)).
、伝送制御回路送信部１０かも送信制御のデータのみが
送信側に送出される。送信側では送信制御データを復調
してリモートテストモードを検知して送信側のリレーを
動作させ為と切替回路２で擬似画像信号発生回路２０偶
に接続される。この回路はアドレス回路６からクロック
信号を受けて鋸歯状波又は階段波等の擬似画像信号を発
生している。, the transmission control circuit transmitting section 10 also sends only transmission control data to the transmitting side. On the transmitting side, the transmitting control data is demodulated to detect the remote test mode and operate the relay on the transmitting side.The switching circuit 2 is connected to the pseudo image signal generating circuit 20. This circuit receives a clock signal from the address circuit 6 and generates a pseudo image signal such as a sawtooth wave or a staircase wave.
次に送信（ＴＸ）のデータを検知す墨ととの擬似画像信
号をメモリーに１フイールド記憶する。これらの一連の
動作後に変調回路９で送信制御データを付加して擬似静
止閣僚信号を変調して送出する。受信側ではこの信号を
復調してメ′そリ一に記憶してテレビジ冒ン靜止園像信
号に゛変換して出力端子ｄから出力すゐ。Next, one field of a pseudo image signal of black and black that detects transmission (TX) data is stored in the memory. After these series of operations, the modulation circuit 9 adds transmission control data to modulate the pseudo stationary cabinet signal and send it out. On the receiving side, this signal is demodulated, stored in a memory, converted into a television screen image signal, and outputted from output terminal d.
第２図は第１図による擬似画像信号発生回路２０の構成
を示している。図で１０１％ １０２は４ビツトカウン
ターで入力子からのタイζフグパルスを受はカウントす
る。さらに厘からのプランキング信号を受けこのタイ建
ングでカウンタはクリアーされて、カウンターは０に戻
る。１０３はデジタル−アナログ変換回路でアナレグ信
号に変換すると鋸歯状波信号となる。１０４はオペレー
ジ曹ン増幅器で必要なレベルに変換して、次のオペレー
ジ璽ン増幅器１０５で同期信号を付加して低域フィルタ
ー１０６を介し第１図の切替回路２に供給する。FIG. 2 shows the configuration of the pseudo image signal generation circuit 20 shown in FIG. In the figure, 101% 102 is a 4-bit counter that counts the tie ζ blow pulses from the input terminal. Furthermore, upon receiving a planking signal from Rin, the counter is cleared by this tie-setting, and the counter returns to 0. 103 is a digital-to-analog conversion circuit which converts the signal into an analog signal to produce a sawtooth wave signal. An operating amplifier 104 converts the signal to a required level, adds a synchronizing signal to the operating amplifier 105, and supplies the signal to the switching circuit 2 in FIG. 1 via a low-pass filter 106.
第３図は第２図の動作を水平周期波形で示していゐ、１
１０＃ｉタイ建ングＡｋスで本例では約４ＭＨ２である
。１１１はブランキング信号で、この期間で第２図のカ
ウンター１０１，１０２はクリアーされている。１１２
はアナ隨グ信号に変換された擬似画像信号で０〜２５５
の階調で立上がっている。１１３ｔｉ同期信号の水平同
期パルスで。Figure 3 shows the operation in Figure 2 using a horizontal periodic waveform.
In this example, it is approximately 4MH2 with 10#i tie-building Aks. 111 is a blanking signal, and counters 101 and 102 in FIG. 2 are cleared during this period. 112
is a pseudo image signal converted to an analog signal, from 0 to 255
It is rising at the gradation level of With the horizontal sync pulse of the 113ti sync signal.
これが第２図の増幅器１０５０回路で１似両像信号１１
２に付加されて、１１４で示す信号にして次に低域フィ
ルターで不要帯域を減衰させ出方する。This is the amplifier 1050 circuit shown in Figure 2.
2 and outputted as a signal shown at 114 after attenuating unnecessary bands with a low-pass filter.
本発明は以上説明したように静止１ＷＩ像伝送装置内部
で発生させた擬似画像信号をメモリーに記憶させ伝送す
ることによ〕カメラ入力が無くとも静止画像伝送装置の
試験を極めて簡単Ｋｆｆなえる効果がある。As explained above, the present invention has the effect of making it extremely easy to test a still image transmitting device even without camera input by storing the pseudo image signal generated inside the still 1WI image transmitting device in the memory and transmitting it. be.
ｔａ面の簡単表説明
１ｓ１図は本発明の一実施例を示す図、第２図は第１図
の擬似画像信号発生回路を示す図、第３図状第２図の回
路動作を説明するための図。Simple table explanation of the ta side 1s1 Figure shows one embodiment of the present invention, Figure 2 shows the pseudo image signal generation circuit of Figure 1, and the third figure is for explaining the circuit operation of Figure 2. illustration.
図において、ｌ・・・・・・層像信号切替回路、２・・
曲試験記号切替回路、３・・曲間像信号処理回路、４叩
・・テレビジ箇ンアナ四グ信号変換回路、５−ｍ四メ篭
り一回路、６・・・・・・アドレスパルス発生回路。In the figure, l... layer image signal switching circuit, 2...
Song test symbol switching circuit, 3... inter-song image signal processing circuit, 4 hits... television/analog signal conversion circuit, 5-m 4-memory convergence circuit, 6... address pulse generation circuit.
７・・・・・・制御回路、９・・・・・・変調回路、１
Ｇ・・・・・・伝送、 制御送信回路％１１・・・・
・・伝送制御切替回路、１２ｅａｓｅｓ・折シ返しテス
トモード（ローカル）切替回路。7... Control circuit, 9... Modulation circuit, 1
G...Transmission, control transmission circuit%11...
...Transmission control switching circuit, 12eases/return test mode (local) switching circuit.
１３・・・・・・２線又は４＠切替回路、１４．１５・
・・・・・変成器、１６・・・・・・復調回路、１７・
曲・テレビジＷンデジタルアナｐグ変換回路、１８・・
・・・・映増輻回路、１９・曲・テストモード設定回路
、２０−・・用擬似画像信号発生回路、１・・曲カメッ
入カ端子、ｂ・・・・・・線路出力端子、Ｃ・・・・・
・線路λカ端子、ｄ・・・・・・静止画像出力端子ｈ
１０１ｎ １０２・・・″−４ビットカウンター、１ｏ
３・・曲高速デジタル〜アナ■／変１１１１ＪＩ、 １
０４．１０５・・・用オペレージ璽ン増輻器、１ｏ６・
・曲低域フィルター１１１０−゛・用タイζングパルス
、１１１・・・・・・水平ブランキングパルス、１１２
・・曲アナ■グ画会信号、１１２・・・・・・水平同期
パルス、１１４・・・用出カ複合画像信号。13...2 wire or 4 @ switching circuit, 14.15.
...Transformer, 16...Demodulation circuit, 17.
Song/TV digital/analog converter circuit, 18...
・・・・Picture intensifier circuit, 19・Tune/test mode setting circuit, 20-・pseudo image signal generation circuit, 1・・Tune camera input terminal, b・・・・Line output terminal, C・・・・・・
・Line λ terminal, d...Still image output terminal h
101n 102...''-4 bit counter, 1o
3...Song high-speed digital~ana ■/hen 1111JI, 1
04.105...operation intensifier, 1o6.
・Tying pulse for song low-pass filter 1110-゛・111...Horizontal blanking pulse, 112
... Song analysis signal, 112 ... Horizontal synchronization pulse, 114 ... Output composite image signal.
Claims (1)
発生回路とを具備し、受信側から送信側に送られる遠隔
制御信号として前記試験モード信号を送信側で検知した
と１１、送信側では前記Ｉｌ！似償号を受信側に送出す
ることを特徴とする静止画像伝送装置。The transmitting side is equipped with a pseudo signal generating circuit and the receiving side is equipped with a test mode signal generating circuit, and when the transmitting side detects the test mode signal as a remote control signal sent from the receiving side to the transmitting side. On the side said Il! A still image transmission device characterized by transmitting a pseudo code to a receiving side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56147394A JPS5848584A (en) | 1981-09-18 | 1981-09-18 | Still picture transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56147394A JPS5848584A (en) | 1981-09-18 | 1981-09-18 | Still picture transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5848584A true JPS5848584A (en) | 1983-03-22 |
Family
ID=15429273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56147394A Pending JPS5848584A (en) | 1981-09-18 | 1981-09-18 | Still picture transmitter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5848584A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306763A (en) * | 1991-03-29 | 1994-04-26 | Mitsubishi Rayon Company Ltd. | Process for the preparation of rubber-containing graft copolymer particles |
| US5541256A (en) * | 1993-06-18 | 1996-07-30 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Process for preparing synthetic resin powder having improved blocking resistance |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654179A (en) * | 1979-10-09 | 1981-05-14 | Furukawa Electric Co Ltd:The | Automatic monitoring method for television picture |
-
1981
- 1981-09-18 JP JP56147394A patent/JPS5848584A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654179A (en) * | 1979-10-09 | 1981-05-14 | Furukawa Electric Co Ltd:The | Automatic monitoring method for television picture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306763A (en) * | 1991-03-29 | 1994-04-26 | Mitsubishi Rayon Company Ltd. | Process for the preparation of rubber-containing graft copolymer particles |
| US5541256A (en) * | 1993-06-18 | 1996-07-30 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Process for preparing synthetic resin powder having improved blocking resistance |
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