JPS6156908B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a handwritten transmission device capable of making calls using public telephone lines.

Facsimile and other calligraphy transmission devices have become widely used since the opening of public telephone lines.
Along with this, there is an increasing demand for not only the transmission of image information but also the ability to make phone calls regarding image information.

The present invention has been made with the aim of providing a handwriting transmission device that meets the above requirements, and it constantly monitors the amount of data stored in the transmitter side memory and detects when the amount of stored data reaches a predetermined level above or below. A memory monitoring unit is provided to output the data, and using the timing of the output, a transmission mode flag signal and a call mode flag signal are added before and after the transmission data,
Second, a mode priority switching unit is provided by establishing a transmission mode and a call mode link between the transmitter and receiver through the transmission path by both flag signals.
To provide a handwriting transmission device capable of making calls, which can transmit a series of calligraphy and drawing information by interweaving voice conversation and without creating idle time by making it possible to arbitrarily establish links in each of the above modes. It is something.

Hereinafter, one embodiment of the present invention illustrated in the drawings will be described in detail.

In Fig. 1, 1 is a handwriting device of transmitter A, and operator 2 is used to draw characters and figures to be transmitted.
A binary signal representing the position information of a transmitting pen (not shown) operated by the transmitting pen (not shown), that is, the position on the X-Y coordinates is transmitted. Reference numeral 3 denotes an address generating section which generates a clock signal in synchronization with the binary signal, thereby sequentially writing the binary signal into predetermined locations in the memory 5 of the memory section 4. Reference numeral 6 denotes a memory monitoring unit that monitors the amount of transmitted data including the above-mentioned position information written in the memory 5, that is, the data storage amount a (shown in FIG. When the data storage amount a reaches the level _lm of the memory 5 _shown in FIG. When the storage amount reaches a certain storage amount close to the upper limit storage capacity (level l ₁ in Fig. 2 A), it sends a call end preparation signal b ₁ indicating this, and when the storage amount a reaches the upper limit storage capacity lm, it sends a call termination preparation signal b 1 indicating this. , that is, a call period end signal b ₂ is sent out. Note that l _M is the maximum allowable memory capacity, and writing is virtually completed between lm and l _M.
Reference numeral 7 denotes a command display section, which displays a display such as an indicator lamp (not shown) until a call-ready signal b ₀ is input and then a call period end signal b ₂ is input, indicating that a call is possible as indicated by P in FIG. 2C. It is displayed to the operator 2 that it is in the period (call mode). In the opposite case, it is displayed that it is in the transmission mode (T in Figure 2 C).
Further, in response to the call termination preparation signal _b1 , a warning display such as flashing a display lamp is performed. With these,
When the data sending speed of the memory 5 is slower than the data input speed, the amount of data stored in the memory 5 becomes larger than the upper limit storage capacity of the memory 5, and the situation where input data is lost is prevented in the transmission mode. .

8 is a mode discrimination signal generator, which generates a call ready signal b ₀
and the call period end signal _b2 are input, and when the former is input, the call mode discrimination signal d shown in FIG.
(constituting _the trailing flag hit F of the transmission signal f shown in FIG.
It constitutes the leading flag bit F of the transmission signal f shown in the figure. ), and subsequently, the stored data read signal e to be supplied to the memory 5 is generated. Reference numeral 9 denotes a mode switch which, after inputting the call mode discrimination signal d, switches the handset 1 to the modulator 10 at the trailing edge of the signal.
1 is switched and connected to the transmission line 12, and when the transmission mode discrimination signal c is inputted, the modulator 10 is switched and connected to the transmission line 12 in place of the handset/receiver 11. The transmission and communication mode discrimination signals c and d are sent to the transmission line 12 via the mode switch 9 after and before the corresponding switching connection, respectively. The modulator 10 converts the encoded signal sent from the memory 5 into an analog signal suitable for transmission. From the transmitter A constructed as described above, a transmission signal f whose assembly is shown in FIG. In FIG. 2, S is a voice signal and X is a conventional transmission data signal.

Reference numeral 13 denotes a mode discrimination signal detection section of the receiver B, which receives the transmission signal f from the transmitter A. The mode discrimination signal detection unit 13 distinguishes and detects the leading flag F, that is, the transmission mode flag signal, and the trailing flag F, that is, the call mode flag signal, of the transmission signal f, and generates a transmission mode detection signal as shown in FIG. g, a data write signal i and a call mode detection signal h are generated. 14 is a switching display section, which displays a call mode detection signal h
is input and the transmission mode detection signal g is generated, the lamp indicates that it is in the talk mode period P, and conversely, until the transmission mode detection signal g is input and the talk mode detection signal h is generated, the lamp is displayed in the transmission mode T. A lamp indicates that something is present. Reference numeral 15 denotes a mode switch, which receives a call mode detection signal h and a transmission mode detection signal g; when the former is input, the handset 17 is connected to the transmission line 12 instead of the demodulator 16, and when the latter is input, the handset 17 is connected to the transmission path 12; A demodulator 16 is connected to the transmission line 12 instead of the receiver 17. The data write signal i is sent to the memory 19 of the memory section 18. As a result, the transmission data X of the transmission signal f converted into an encoded signal by the demodulation section 16 is once written into the memory 19, and then the position information is designated by the coordinate position by the position designation signal k of the address designation section 20. and is supplied to the recording section 21. In this way, the calligraphy information drawn on the handwriting device 1 by the transmitting pen is stored in the recording unit 2.
1 recording paper (not shown). 22 is a remaining amount monitoring unit of the memory 19 which sends a read stop signal to the memory 1 when the amount of data stored in the memory 19 becomes zero.
Send on 9th. 23 indicates an operator.

In the above configuration, when the data storage amount a of the memory 5 reaches the upper limit storage capacity lm, the memory monitoring section b sends out a call period end signal _b2 , so that the transmitter side operator 2 knows that it has entered transmission mode T. At the same time, the mode switch 9 is activated, and the transmission mode discrimination signal c is transmitted from the mode discrimination signal generator 8 to the transmission path 12.
The signal is then input to the mode discrimination signal detection section 13 of the receiver B. The mode discrimination signal detection unit 13 detects that this input is the transmission mode discrimination signal c, the transmission mode detection signal g is output, and the switching display unit 14 indicates that the transmitter side has entered the transmission mode. A lamp is displayed to the operator 23. At the same time, the mode switch 15 is activated. Thus, when a transmission mode link is established between the transmitter and receiver, the data in the memory 5 is read out and modulated, and then the transmission path 1 is
2 and is input to the demodulator 10. The data encoded by the demodulation section 16 enters the memory 19, and the position information is inputted to the recording section 21 with the coordinate position specified by the address specification section 20.

When all of the accumulated data a in the memory 5 has been sent out and has reached the level _l0 , the memory monitoring section 6 sends out a call ready signal _b0 , so the operator 2 can indicate the call enabled period, that is, the call availability period by the lamp display on the command display section 7. Know that you are entering mode P. At the same time, on the receiver side, the mode discrimination signal detection section 13 detects the trailing flag F of the transmission signal f, that is, the call mode discrimination signal d from the mode discrimination signal generation section 8, and detects the call mode discrimination signal h.
occurs. In response to this signal h, the switching display section 14 displays a lamp to indicate to the operator 23 on the receiver side that the call mode is to be entered. The mode switchers 9 and 15 are activated by the trailing edge of the call mode discrimination signal d and the trailing edge of the call discrimination detection signal h. A talk mode link is thus established between the transceiver and the transceiver. The operators 2 and 23 can have a conversation during this time, and at the same time can input calligraphy information to be transmitted into the handwriting device 1. This information is accumulated in the memory 5 during the above period, but the accumulated amount a
When the level _l1 is reached, the command display section 7 displays a warning lamp, so that the operator 2 can stop inputting information before the memory 5 overflows.

As described above, according to the present invention, the amount of data stored in the memory on the transmitter side is constantly monitored by the memory monitoring section, and when the amount of data stored reaches the upper limit storage capacity, transmission is performed in synchronization with this timing. A mode discrimination signal is sent, which activates the mode switch, connects the modulation section, that is, the data circuit to the transmission path, and sends the signal to the transmission path.When the lower limit storage capacity is reached, the call mode discrimination signal is activated. is sent to the transmission line, and the mode switch operates in the opposite manner to the above to connect the communication circuit to the transmission line,
Since data is normally read from the memory between both signals, a transmission signal with a transmission mode flag signal and a path mode flag signal added before and after the normal transmission data is sent to the transmission path. Therefore, on the receiver side, both of the above flag signals are discriminated by the mode discriminating signal detection unit, and depending on the content of the discrimination, the mode switch selects whether the demodulator, that is, the data circuit, or the handset, or the telephone circuit, is connected to the transmission path. Since the transmitter and the receiver are switched and connected to each other, a link between the transmitter and the receiver in the transmission mode and the communication mode is automatically established by the above-mentioned two flag signals.

Therefore, according to the present invention, during the call mode period,
Not only can you have a voice conversation about the previously transmitted information or the next transmitted information, but if you do not have a conversation, you can write the information to the next transmitted information memory, and if you do not have a conversation, you can write it into the next transmitted information memory. It is also possible to write information to the memory, and when the amount of data stored in the memory reaches the upper limit, the transmission data is automatically sent to the transmission line, so a series of calligraphic information can be transmitted while the telephone line is connected. You can interweave the conversation and have it without creating any free time. Further, according to the present invention, the status of each mode is displayed to the operator using lamps, etc., so that the operator can effectively utilize the apparatus.

Next, the second invention will be explained. this is,
The apparatus shown in FIG. 1 is provided with a mode priority switching section 30 surrounded by a dotted line. The mode priority switching unit 30 is a manual signal generator such as a push button, and its output is input to the mode discrimination signal generation unit 8. Based on the input, the mode discrimination signal generation unit 8 determines the communication period of the memory monitoring unit 6. It has the same effect as when the end signal _b2 is input. Therefore, according to the present invention, the communication mode can be switched to the transmission mode and information can be transmitted without waiting until the amount of data stored in the memory 5 reaches the upper limit storage capacity. 30 is provided with another output circuit, and an output that is different from the above and corresponds to the call enable signal _b0 of the memory monitoring section 6 is inputted to the mode discrimination signal generation section 8, so that the operator can 2. It is possible to switch to the transmission mode when desired. Therefore, according to the present invention, modes can be freely switched and the efficiency of information transmission can be further improved. Furthermore, by supplying the above output to the command display section 7, it is possible to display mode switching.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a handwriting transmission device capable of communicating according to the present invention, and FIG. 2 is a timing chart of signals of various parts. In the figure, 5 is a memory, 6 is a memory monitoring unit,
7 is a command display section, 8 is a mode discrimination signal generation section,
Reference numerals 9 and 15 are mode switchers, 11 and 17 are handsets, 12 is a transmission path, 13 is a mode discrimination signal detection section, 14 is a switching display section, and 30 is a mode priority switching section.

Claims (1)

[Claims] 1. In a handwritten transmission device equipped with a handset,
A memory monitoring unit detects that the data storage amount of the transmitter memory has reached the upper and lower limit storage capacity of the memory and outputs upper and lower limit detection signals, and a transmission mode and a lower limit detection signal are respectively set in response to the upper and lower limit detection signals. a command display section that displays the call mode; a mode discrimination signal generation section that receives the upper limit and lower limit detection signals and adds a transmission mode flag signal and a call mode flag signal before and after the transmission data signal, respectively; The transmitter is provided with a mode switch that selectively connects the data circuit and the speech circuit to the transmission path, and the receiver includes a mode discrimination signal detection unit that discriminates both of the incoming flag signals and generates a corresponding output; A mode switching device for selectively connecting a data circuit and a communication circuit to a transmission line in accordance with the corresponding output, and a switching display section for displaying a mode in accordance with the corresponding output of the mode discrimination signal detection section. A handwriting transmission device that allows communication. 2. In a handwritten transmission device equipped with a handset,
A memory monitoring unit that detects that the data storage amount of the transmitter memory has reached the upper and lower limit storage capacity of the memory and outputs upper and lower limit detection signals, a manual mode priority switching unit that outputs a transmission mode switching signal, and the above. A command display section receives the upper limit detection signal, the transmission mode switching signal, and the lower limit detection signal and displays the transmission mode and call mode, respectively, and the upper limit detection signal, the transmission mode switching signal, and the lower limit detection signal are guided to display the transmission data. A mode discrimination signal generator that adds a transmission mode flag signal and a call mode flag signal before and after the signal, respectively, and a mode switch that switches and connects the data circuit and the call circuit to the transmission path in response to both of the flag signals. The receiver includes a mode discrimination signal detection unit that discriminates both of the incoming flag signals and generates a corresponding output, and a data circuit and a speech circuit are selectively connected to the transmission line in response to the corresponding output. 1. A handwritten handwriting transmission device capable of making calls, characterized in that it is provided with a mode switcher for controlling the mode, and a switching display section for displaying a mode according to the corresponding output of the mode discrimination signal detection section.