JPS61114653A - Picture signal recorder - Google Patents

Abstract

PURPOSE:To obtain a recorder recording a signal without splitting the signal into blocks by storing a binary signal corresponding to the contrast of a picture signal in a line memory storing data for a one line's share depending on its weight and applying a voltage having a different pulse width from each line memory to a recording head to record an intermediate gradation. CONSTITUTION:Picture signal data from a transmission side transmitted via a telephone line is demodulated by an MODEM 1, the contrast level of the data is detected by a level detection circuit 2 into 8 levels (0-7) and the result is outputted as binary signals having weight of 2<0> 2<1>, 2<2>. Then each binary signal is stored respectively in three line memories 3, 4, 5 depending on the weight. Further, the line memory 3 in which the data with a weight of 2<0> is stored is selected and the data is fed to a recording head 8. On the other hand, a recoding pulse generating circuit 9 generates a recording pulse P1 having a pulse width T, which is fed to the recording head 8. Then the line memory 4 is selected and a recoding pulse P2 having a pulse width 2T is generated from the recording pulse generating circuit 9. Further, the line memory 5 is selected and a recording pulse P3 with pulse width T4 is generated.

Description

[Detailed description of the invention] H] Industrial application field The present invention relates to an image signal recording apparatus that performs halftone recording.

(Conventional technology) In recent facsimile machines, a thermal recording method is generally adopted.
There are some things that can be done on halftone recording by controlling IJ. However, in the conventional method, for example,
As shown in the No. 515 publication, the recording head is divided into a plurality of blocks and the recording is performed for each block.
There was a problem with the increase in the number of 1ull administrations and the fact that it took a lot of time to record them. Also, a plurality of blocks t of the recording head
There were problems as the switching circuit for changing gJ became complicated.The problem that the invention aims to solveWe solved the above-mentioned problems in BA and configured it to record without dividing blocks Ic. The purpose is to provide the Imqi issue record sm.

2) Means for determining the M point tS in the present invention, the 92-point signal corresponding to the ii1 signal is stored in a line memory that stores data for 1 line of Vc every summer, and the pulse width is different for each line memory. It is composed of the 4th volume of the Shichiki Ken Hendo, the immediate XIL, and the intermediate Mtt record T.

(E) Since the operation tree @IiA is configured as shown in the upper row, even when recording 8 gradations, for example, line memory switching and t can be
1! To record one line at a time with only 21 steps,
It can be recorded in a short period of time, and even on a concave road, it can be easily recorded.

(f) Example Embodiments of the present invention will be described below with reference to the drawings.

$1 is a block indicating the reception recording section of the 2-axis system (11 is the modem route that demodulates the image signal transmitted from the telephone up line, and the demodulated image signal output is at the level The signal rL7 input to the level generating LQ circuit 121 is simulated by dividing it into the image signal t8 stage, and outputs [,2[signal output qg'
+ ti live. Output f19rx Tenten 2 o, 2
t,, 22 is outputted as 72i f71%, and then inputted into line memory +311411H and stored.

For example, 1 line 20 in line memory +31 +4 halo)
It has 48 bits of data tk:, 1 to 8 bits.

161 is line memory + 31 f4 halo j output is input le yt, j11 selection concave bribe, 1-circuit (7) F's culture selection number (line memo U selected based on town 55 g3)
The output of either i4j151 is sent to thermal recording head 1.
81. (9I is the control Ig circuit (7) Recording pulse generation 1 where F's transparent selector (town, S2)
On the Illll road, the recording pulse of 5d with the pulse width as shown in the second row according to selection No. 18 (81S) was almost tE.
The recording pulse generated by the recording head T811C1gim is shorter than that of the recording head T811C1gim. Control Uw! ti7
It is based on a program in which each part is pre-memorized by a microprocessor.
I am a 5-year relative.

Next, the sea bream tp of the present invention consisting of such @ will be explained.

First, #i of the transmitter side is transmitted after completing the screw connection LgI transfer.
The No. 11 data is divided into 8 levels from 0 to 7 in the modem lJI circuit (11 is demodulated by Hashitomo, level output is L! 111 #! t121 is the level of compensation) rc, 2021.21, 21st ward 1 with plate fitting
For example, pure white is "0" and "0.0" is output as No. 8.
．． 0" is output, ^711% or r7J is rl, 1
．． It is output as ``1'', and the number 211M corresponding to the level is output on the inside of it. And each of the 2 yakugo numbers are memorized in the 6th sister's line memo January 31+41151.

Therefore, at one time level of one recording dot, the data stored in each of the six line memories (+31+416) are represented by ffi.

Kagushite Line Memo On January 31st, data with weight of 20 or 1 line is memorized, and line memory is 141Jil as well.
One line of Arashi data for TL21/21 is stored. When the data for the 7th fly is stored in the line memory +31 +4 in this way, the control 1g circuit (71 generates the selection @ (Elt, 8). First, the control circuit (71 is 8t = CL). A selection signal of 0 is generated, and the selection signal C6I and the recording pulse generation circuit f
By supplying data to the line memory 131 'k11' in which the 2° distortion data is stored, one line of data stored in the line memo 31 is transferred to the recording head. 181. On the other hand, the same selection port '8 outputs pulse 1 to the supplied recording path (at 91).
11ilT recording pulse (Pi)t'' generation recording head 1
81. Line memo January 31j data and recording pulse generation UO path (911 recording pulse (Plρ;
Supply n, 2 recording heads (8) line memory +a+
The data above corresponds to 1, and the 9 dots correspond to the recording pulse (P
In the 111th period of 111j, the heat-sensitive record Mt was almost completely changed. Then, for example, the data of the line memo January 31 is shown in the 13th bi), and the dot with the data 1 becomes colored as shown in Figure 4 (a) of April 1. Recording pulse (
Pl): At the end of the recording, #IJW circuit (7) generated 8 states, BtwQ selection signal money, and line memo January 4
1t'' and pulse 12°C recording pulse (Pl
) Meeting recording pulse generation circuit (ill to be generated from 91)
JM. This line memory (41 data and recording pulses (Pl) are supplied to the 7c recording head 181,
The dots corresponding to the data IK in the line memory (4) will be emitted for 2! hours. Therefore, for example, in the case of line memory 131 as shown in Figure 6 (portion C), The color is 2tf more than the one from Rinji!
In fact, the same color is produced when using r!2! In addition, the data from Line Memo UI 41 also shows the color development due to the 8th dot. This is shown in Figure 4 of the LVc extension. a, b, o,
Recording is performed at four gradations indicated by a and n.

a, be ae 6 (0 with fineness of Iso in D order)
The next 1c control circuit (7) is s 1 = Oe 8 ! By generating a selection signal of =1, the line memo 51i is selected and a pulse width 4TC1 recording pulse (T5)'ie is generated from the recording pulse generation tooth path (9) 511jm. Due to the data from line memo January 61 and the recording pulse (T5), the recording head (8) generates heat in the recording head (8). By matching, eight gradations of a to hEL, where a is white and h is different, are recorded as shown in Figure M4.

In the embodiment, the width of the recording pulse is T12Te4T, and the ratio is not limited to this, but may be set to an excessive pulse width and T.
By doing so, it is possible to make the psIf&glow color appear brighter.

In addition, in the embodiment, the case of 81If tone will be explained as an example, and the ratio will be Lebel detection tlI! Let's perform more detailed level detection of Iw & +21 and increase line memory failure in response to sorL.
By increasing the Vc record pulse by a + 1 or more, 16N
It is also possible to record 62 gradations.

(G) Effects of the Invention As described above, the 1ili signal recording bag according to the present invention detects the ambiguity level of the image signal and converts it to a 21 straight No. The data for a line is recorded in the line memory VC, and the configuration is configured to generate recording pulses with different pulse widths depending on the setting of the line memory, so that the data in the line memory and the recording pulses can be recorded! The recording head is controlled to record one line at a time, and by sequentially selecting line memories and performing mouse recording, one line of halftone recording is completed. This can be done with a simple lli circuit that only selects the line memory, and compared to the conventional method of dividing the Vc1 line into multiple blocks for recording, the recording time is shorter and the circuit configuration is simpler. There are 5aJ cases such as simply freezing.

[Brief explanation of drawings]

Figure M1 is record I showing the configuration of the one-sided J+ recording device of the present invention.
! It's a bad thing to show. +11-modem circuit, 121-・level detection Lg circuit,
+31141161-5 Iy 71 MoIJ, +
111-Select mW&, (7)-Control am path, 181 =
Era Record 7)', 191- Record 11i1k Huff 1/ Su Occurrence uow! I.

Claims (1)

[Claims] (1) Weighting the image signal according to the gray level 2
means for converting into a value signal, a plurality of line memories for storing one line of binary signals for each weighting, a selection circuit for selecting one of the line memories, and recording pulses having different pulse widths corresponding to the weighting. a recording pulse generation circuit that generates a recording pulse; a control circuit that controls the selection circuit and the recording pulse generation circuit to selectively control the line memory and the recording pulse; and supplying data and recording pulses to the selected line memory,
An image signal recording device characterized by comprising a recording head in which corresponding dots generate heat.