JPS6234451A - Selection signal sending-out circuit - Google Patents

Abstract

PURPOSE:To reduce the storage capacity of a storage means, by making selection between the storage means and a data by-passing means by means of a switching means. CONSTITUTION:Selection between a storage means 14 and data by-passing means 16 is performed in response to the switching operation of a switching means 12 and fixed data of select signal data are stored in the storage means. The other variable data are sent to the output side of the storage means through the data by-passing means 16. If the switching means 12 is constituted in such a way that, for example, the means 12 can be switched in accordance with specific key operations (e.g., operation of MS key), the fixed data and nonfixed data whose contents are variable of the select signal data can optionally be selected and desired data can be stored in the storage means. Therefore, the storing content of the storage means can be controlled from a caller.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a selection signal transmitting device for transmitting a selection signal in response to a dial operation in a telephone, etc. The signal format is pulse signal or DTM F (Dual Ton
e Modulated Frequency) signal.

[Conventional technology]

2. Description of the Related Art Conventionally, telephones have used a selection signal sending device that sends out a selection signal representing a destination telephone number or other data in response to a dial operation on a keyboard.

These selection signal sending devices are broadly classified into those whose selection signals are pulse signals and those whose selection signals are DTMF signals (tone signals).
A device (tone/pulse dialer) that is configured to be able to send out both MF signals and select one of them using a switch has also been put into practical use.

This selective signal sending device that is capable of sending both pulse signals and -DTMF signals is compatible with various services using telephones, improved productivity by standardizing circuit units of telephone manufacturers, and services for consumers. In particular, we will support long-distance M telephone services, which are in increasing demand, seat reservations on transportation such as trains and airplanes, etc.
In order to respond to financial institutions or various telephone services such as computer access, it is essential to send both pulse signals and DTMF signals as selection signals.

Incidentally, in this selection signal sending device, a redial memory is installed as a storage means for storing the contents of keyboard operations in preparation for re-operation, and all human input data is stored in this redial memory. Redial memory consists of Wi-ring memory, which has an appropriate storage capacity by sequentially circulating stored data according to input data, and memory, which prohibits writing of input data when the input data reaches its maximum storage capacity. .

[Problem that the invention seeks to solve]

In such a selection signal sending device, when a dial operation is performed, all input data is stored in the dial memory, so when using various services, the calling number of the various service provider companies and the PIN number required to receive the service are stored in the dial memory. In addition to fixed input data like Dial memory is required.

In addition, for services that require manual input for consecutive multi-digit keys, there is a risk that manual data will be written to the redial memory in excess of its storage capacity, and if the storage capacity of the redial memory is exceeded, previously stored data There is a risk that the redial function may be disabled due to being rewritten or prohibiting the writing of redial data.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a selection signal sending device that reduces the amount of data to be stored in a storage means and simplifies redial operations.

Means for Solving Problem C] The selection signal sending device of the present invention includes data input means (for example, keyboard 2) for inputting arbitrary selection signal data by selecting a key, and storage means for storing selection signal data. (for example, abbreviation/redial memory 14), data bypass means (for example, data bypass circuit 16) for outputting the selection signal data across the storage means to its output side, and data bypass means for the selection signal data or and a switching means (for example, a gate circuit 12) for switching input to the storage means.

[For production]

The selection signal sending device of the present invention selects between the storage means and the data bypass means in response to switching of the switching means, stores fixed data in the selection signal data in the storage means, and stores other variable data in the storage means. It is sent to the output side of the storage means via bypass means.

In the selection signal sending device of the present invention, if the switching means is configured to be switched in response to a specific key operation (for example, MS key operation), the switching means can be configured to switch between fixed data and data content in the selection signal data. Non-fixed data whose values change can be arbitrarily selected and desired data can be stored in the storage means, and the stored contents can be controlled by the person making the call.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an embodiment of the selection signal sending device of the present invention.

In FIG. 1, a keyboard 2 installed as a data input means for selection signal data includes a numeric keypad, a tatami key, a # key, a pause (PA) key, a tone/pulse (TP) selection key, and a memory write inhibit (MS) key. ) key and a redial (RD) key, and in this embodiment, a total of 1
It consists of 6 keys. These - keys are used to input the destination telephone number and other selections, and the input data of the operated keys consists of position information on the horizontal and vertical axes of each key.

The key data obtained by operating each key on the keyboard 2 is applied to a selection signal sending unit 4 which converts the telephone number of the other party and other information into a selection signal based on key position information and outputs the selection signal.

In this selection signal sending unit 4, key manual data from the keyboard 2 is applied to a key manual logic circuit 6,
This key human power logic circuit 6 generates a selection signal data according to the human power of the numeric keypad or other signals according to the human power of the keys, such as a memory write inhibit signal, at specific time intervals in synchronization with the clock pulse applied from the reference oscillation circuit 8. M.S.
, tone pulse selection signal T/P, memory write signal W
Output R etc. Note that the oscillation frequency of the reference oscillation circuit 8 is set by the natural oscillation frequency of the crystal oscillation element 10 externally attached to the selection signal sending unit 4.

The selection signal data output by the key human logic circuit 6 is applied to a gate circuit 12 that selectively switches the output direction of the data, and the selection signal data that has passed through the gate circuit 12 stores various data. For example, a shortcut/redial memory 14 installed as a storage means.
(hereinafter simply referred to as memory I4), and is also sent across this memory 14 to a data bypass circuit 16 installed as a data bypass means.

The memory 14 includes a write pointer 18 that specifies a write address for writing data, and a read pointer 2 that specifies a read address from which stored data is read.
0 is connected via a pass line. The write pointer 18 stores the selection signal data from the gate circuit 12 at a predetermined address in the memory 14 in response to a memory write signal WR applied as a write start signal from the key human logic circuit 6. Also, the read pointer 20 is the memory 1
Select signal data, which is the stored content, is sequentially read out from the memory 14 in response to a read start signal applied from a successive output circuit 22 installed on the output side of the memory 14 and reading out the stored data.

The output circuit 22 receives the selection signal data read from the memory 14 or the selection signal data output from the gate circuit 12 via the data bypass circuit 16, and when making an outside line call from the private telephone, The pause control circuit 23 sets the pause time necessary to connect the local telephone to the outside line according to the pause data input following the central office line acquisition signal (for example, 0 dial signal), and during the pause time. The transmission of the selection signal is prohibited. Note that after this pause time ends, the transmission of the selection signal is restarted.

Each data obtained by the continuous output circuit 22 is sent to the pulse output circuit 2.
4 and is also applied to the DTMF output circuit 26. In this case, in the pulse mode, the pulse output circuit 24 is controlled to an operating state by a switching signal from the mode detection/switching circuit 28, and generates a pulse corresponding to each data from the successive circuit 22, and this pulse is used as a selection signal. The signal is sent from the output terminal 30 to a telephone line (not shown).

In the tone signal mode, the operation of the pulse output circuit 24 is stopped, and the DTMF output circuit 26 forms a DTMF signal according to the selection signal data applied from the successive circuit 22, and this DTMF signal is output from the output terminal 32 as a selection signal. and is similarly sent out to the telephone line.

Here, to explain the DTMF output circuit 26 in detail, a frequency divider 34 is installed at its input portion to divide the clock pulse from the reference oscillation circuit 8, and its frequency divided output is the selection signal data from the successive circuit 22. A high group programmable frequency divider 36A (hereinafter simply referred to as frequency divider 36) whose frequency division ratio is set by
A) and a low group programmable frequency divider 36B (hereinafter simply referred to as frequency divider 36B), and each frequency divider 36
It is converted into signal data of different frequencies determined by the frequency division ratio set in A and 36B. In this case, the high group frequencies are fHIsfH2, fH3 from the left corresponding to the horizontal position of the keys on keyboard 2, and the low group frequencies are fLI% f from the top corresponding to the vertical positions of the keys on keyboard 2.
L! , rt, :+-1fL4, since the frequency division ratio corresponding to the operation key is set in each frequency divider 36A, 36B by the selection signal data from the successive circuit 22, it represents the horizontal position of the operation key. A clock pulse having a frequency of any one of the high group frequencies fil to fH3 and a clock pulse having a frequency of any of the low group frequencies fLI to rL4 representing the vertical position thereof are output, respectively. The clock pulse of the high group frequency fol "" f H3 is the high group sine wave counter 38A, and the low group frequency fL+-fL
Since the n clock pulses are respectively added to the low group sine wave counter 38B, the high group sine wave counter 38A counts the clock pulses of the high group frequencies f□ to fHJ, and calculates the digital signature of the high group frequencies f□ to r, 43. A wave is formed, and the low group sine wave counter 38B counts the clock pulses of the low group frequency fLI"fL4,
A digital sine wave with low group frequencies fLI to fL4 is formed. These high group and low group sine waves are individually converted into analog signals by digital/analog converters (D/A) 4OA and 40B, and then combined by addition in an adder 42 to form a tone signal. The tone signal is amplified by the output amplifier 44 and sent to the output terminal 32 as a selection signal.
taken from. In this case, the output amplifier 44 is selectively switched with the pulse output circuit 24 by a switching signal from the mode detection/switching circuit 28, and is controlled to be in an operating state in the tone signal mode. Therefore, in the tone signal mode, a selection signal consisting of a tone signal is output.

Furthermore, when transmitting a tone signal, the mute output circuit 27 generates a mute signal that prohibits human power to transmit the transmitter so that noise from the transmitter does not affect the tone signal, and also outputs a pulse signal. At the same time, a mute signal is generated to prevent the noise generated due to line switching from being output to the receiver, and each mute signal is sent to the output terminal 25.
Output from.

The mode detection/switching circuit 28 receives the tone/pulse selection data T/P from the key human logic circuit 6, the tone/pulse selection data T/P from the readout circuit 22, or
The pulse mode (P) or the tone mode (T) is detected based on either tone/pulse selection data T/P from an external switching circuit 46 installed as an external switching means, and a switching signal corresponding to each mode is generated. Along with the pulse output circuit 24 and the output amplifier 44, a memory gate control circuit 48 controls the gate circuit 12 and the memory 14 according to each mode.
The control status is set according to each mode.

The memory gate control circuit 48 switches the output direction of the gate circuit 12 in response to a switching signal from the mode detection/switching circuit 28, and also prohibits writing to the memory 14 in response to a memory write inhibit signal MS from the key human logic circuit 6. At the same time, a display output is generated according to the memory write inhibit signal MS.

The display output is held in a latch circuit 50, and the held display output is applied via a gate circuit 52 to a display device 54 composed of a display element such as a lamp. In this case, the gate control circuit 56 opens and closes the gate circuit 52 in response to a redial signal RD from the key human logic circuit 6 or a switching input from a hook switch that is opened and closed in response to the operation of the handset. (OF
F) 100K) When the redial key is pressed, the gate circuit 52 is controlled to pass the signal. Therefore, when the gate circuit 52 is controlled to pass, the display device 54 is driven by the display output from the latch circuit 50 and displays the write-inhibited state of the memory 14.

Therefore, this selection signal sending device outputs a selection signal according to key manual data from the keyboard 2 in the form of a pulse signal or a tone signal in response to switching, and also outputs necessary data in the key manual data, such as the destination telephone number. Store fixed data parts such as numbers in the memory 14 as needed.
The stored contents are read out as needed, simplifying the dial input operation and reducing the storage capacity of the memory 14.

FIG. 2 shows an example of a key manual operation and selection signal sending program of the selection signal sending device of the present invention.

In Figure 2, as shown in step S, the handset is removed from the phone body and the hook switch is turned off (OFF) (100K), or the handset, such as a so-called speakerphone, is integrated with the phone body. For telephones that are equipped with a hook switch separate from the handset, turning the hook switch to the OFF state connects the telephone to the telephone line. In this state, the call number of the other party is input from the keyboard 2 in step S2.

Here, key manual data from the keyboard 2 is written into the memory 14 via the key manual logic circuit 6 and the gate circuit 12. At this time, if the MS key is not pressed,
Since the memory write inhibit signal MS is not outputted from the key human logic circuit 6, the gate circuit 12 is permitted to input data to the memory 14 by the gate control signal from the memory gate control circuit 48.

Then, in step S3, it is determined whether the handset is busy or not based on a signal sent from the telephone line to the handset.

If the call is busy, return the handset to the main body of the telephone (ON HOOK) as in step S4, or turn on a hook switch provided separately, and re-input from step S1.

In step S, if it is not busy, step S,
The user operates the MS key to prohibit the storage of key data into the memory 14. In this case, in step S6, when the MS key of the keyboard 2 is pressed, a memory write inhibit signal MS is applied from the key input logic circuit 6 to the memory gate control circuit 48, and this memory gate control circuit 48
Since a gate control signal is applied to the gate circuit 12 from the gate circuit 12, the data passing direction of the gate circuit 12 is switched to the data bypass circuit 16. As a result, key input data from the keyboard 2 after operating the MS key is output across the memory 14 from the gate circuit 12 to the output side of the memory 14 via the data bypass circuit 16.

At this time, in step S, the memory gate control circuit 48 outputs a prohibition display signal in response to the memory write prohibition signal MS, and this display signal is held in the latch circuit 50 and sent to the display device via the gate circuit 52. Added to 54. In this case, when the hook switch is OFF, the gate control circuit 56 controls the gate circuit 52 to pass a signal, so the display device 54 operates to display the memory write inhibited state.

After operating the MS key, in step S, the user inputs, for example, a password set according to a contract with the other party in order to receive a specific service.

In step S, a recognition means such as a computer of the other party recognizes whether or not the input password is correct. In this case, if the password is incorrect, enter the password again. When a valid PIN is entered,
In response to a message from the other party, in step S1°, the service code of the other party is inputted to receive the desired service.

The end of the service is confirmed in step S11, and if the service is not completed, the process returns to step S1゜.
Enter the service code again to receive service. If it is confirmed in step SIl that the service has ended, return the handset to the telephone body in step S1□.
HOOK) or turn on a separately provided hook switch to complete the call.

Then, in step S11, it is determined whether or not to dial again, that is, to redial, and if not to redial, this selection signal sending program is terminated, but if to redial, immediately before the end of the call in step S+4. It is determined whether or not to make a call by outputting the number of the other party, and if the number of the previous party is not output, step S.

Return to , and enter the destination's calling number.

Also, if you want to output the number of the other party immediately after the call ends, remove the handset in step SIS (0FFHOOK).
Alternatively, by turning off a separately provided hook switch and operating the RD main key of the keyboard 2 in step 316, the operations from step Sl to step S can be omitted and a conversation with the other party can be started. I can do it. Whether or not the dial operation is possible can be confirmed by the display on the display device 54.

Examples of various types of services for sending such selection signals are as follows.

fal Long distance telephone service Long distance telephone company calling number (pulse signal or tone signal) Large car MS key operation - PIN code (tone signal) - destination calling number (tone signal) In this case, long distance telephone company calling number ( Since the pulse signal or tone signal is fixed data, it is stored in the memory 14, and other data is sent to the output side of the memory 14 via the data bypass circuit 16.

fbl Business services of financial institutions, etc. (banks, securities companies, etc.) Entering the financial institution's calling number (pulse signal or tone signal) MS key operation - PIN number (tone signal) - service code (tone signal) In this case, financial Since the engine calling number (pulse signal or tone signal) is fixed data, it is stored in the memory 14, and other data is sent to the output side of the memory 14 via the data bypass circuit 16.

(C) Large car MS key operation of service seat reservation, etc. for transportation such as railways and airplanes (pulse signal or tone signal) - Service code (tone signal) In this case, seat reservation, etc. call number ( Since the pulse signal or tone signal is fixed data, it is stored in the memory 14, and other data is sent to the output side of the memory 14 via the data bypass circuit 16.

fd) Computer access Computer company call number (pulse signal or tone signal) large car MS key operation - PIN code (tone signal) -
Data (modem) In this case, since the computer company calling number (pulse signal or tone signal) is fixed data, it is stored in the memory 14, and other data is sent to the output side of the memory 14 via the data bypass circuit 16. .

It goes without saying that in addition to these various services, it is also possible to make a call to the other party by normal dialing operations.

Furthermore, in the embodiment, a mode in which both a tone signal and a pulse signal can be transmitted as a selection signal, and both can be selected, has been described. It can also be applied to fixed forms.

〔Effect of the invention〕

As explained above, according to the present invention, the switching means selects between the storage means and the data bypass means, and, for example, only necessary data such as fixed data among key manual data is stored in the storage means. Therefore, it is possible to reduce the storage capacity of the storage means, and it also prevents inconveniences such as the contents of the storage means being rewritten or reading prohibited when receiving various services by inputting a continuous multi-digit dial. It is possible to prevent this, simplify the redial operation, and use a storage means with a small storage capacity.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the selection signal sending device of the present invention, and FIG. 2 is a flowchart showing its operation and selection signal sending program. 2... Keyboard as input means, 12... Gate circuit as switching means, 14... Shortening/redial memory as storage means, 16... Data bypass circuit, 28... Mode detection/switching Circuit, 48...Memory gate control circuit.

Claims (2)

[Claims] (1) A data input means for inputting arbitrary selection signal data by selecting a key, a storage means for storing the selection signal data, and a data bypass for outputting the selection signal data across the storage means to its output side. and switching means for switching input of the selection signal data to the data bypass means or the storage means. (2) The selection signal sending device according to claim 1, wherein the switching means is switched in response to a specific key operation.