JPS5859661A - Controller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to remote control: control for a telephone answering device of the type that responds to calls [1].

U.S. Pat. No. 3,991,272 describes a telephone answering device that can be operated from a remote location by transmitting a tone at a predetermined frequency over a telephone line. In response to this tone, the telephone answering device automatically rewinds the message tape to its starting position and then rewinds all messages accumulated up to 7 rL recorded on the message tape. The reproduced and recorded message is transmitted to the calling party via the telephone line. Other types of remote control answering devices are also known.

an announcement tape which is activated in response to a ringing signal received over the telephone line, during which the announcements being played on the announcement tape are activated over the telephone line; is sent to the calling party via At the end of the announcement period (Tl), the message tape is activated and a message from the calling party is emitted onto the message tape during the following period (T2).

The telephone answering device of the above-mentioned U.S. patent allows a person to make a telephone call from anywhere in the world, activate his or her own telephone answering device, and transmit all the messages stored on the message tape to him/her over the telephone line. It is controlled remotely.

Remote control of this device is provided by a small portable transmitter. The user places this transmitter on the mouthpiece of a telephone, controls it with a push button, and transmits a tone signal having a predetermined frequency over the telephone line. When the telephone answering device activates its control circuit in response to a specific tone frequency, the control circuit in the telephone rewinds the message tape to its initial position.
Next, the message tape is set to the playback state, so that the messages recorded on the tape can be successively transmitted to the calling party via the tape.

One problem with the remote control device described in this patent, as well as other remote controls like it, is that anyone with a suitable remote control device can control the telephone number of a particular telephone answering device. It is possible to call the number, control the device t-1tu, and listen to all messages recorded on the device. This problem is solved by the type of coded remote control or other type of remote control described in U.S. Pat. No. 4,196,311. In such a device, a telephone answering device is provided with a plurality of code switches, and a predetermined code is set manually using these seven code switches.

The remote control device K is also provided with the same number of code switches that are manually set to the same detention. This way, the remote control device i
i'fl - When activated, a signal tone based on the predetermined code is transmitted over the telephone path, allowing contact with a particular telephone answering device.

The apparatus of this invention is generally of the same type as described in U.S. Pat. No. 4,196,311, and similarly includes:
The telephone answering device is provided with a number of code switches that are manually set to a predetermined code, and the remote control device is provided with code switches of the same number that are manually set to the same code. . The system of the invention is such that only authorized persons can access a particular telephone answering device, and only if they first transmit a tone signal over the telephone line according to a predetermined code. I will guarantee it to the best of my ability.
The device of the invention is particularly suitable for microprocessor-controlled telephone answering machines and provides a relatively simple and reliable coding system for such telephone answering machines.

The invention includes: a first magnetic tape mechanism recording an announcement transmitted over a telephone line during a first period (T-1) in response to a ringing signal received over the telephone line;
and a second magnetic tape mechanism for recording messages received over a telephone line during a second period (T-2) after the first period. The controller is connected to a telephone line and a first circuit configurable to represent a predetermined digital code;
Announcement signal from the first magnetic tape mechanism'? A message signal from the calling side received via the telephone line is received and recorded on a second magnetic tape, and a multi-pit binary code is transmitted from the remote control device via the telephone line. an audible circuit that receives a signal tone signal; and an audible circuit that is connected to the audible circuit and a first circuit and generates an output control signal when receiving a signal tone signal' that matches a setting state of the first circuit from the audible circuit. a microcomputer connected to the microcomputer, and in response to output control signals of the microcomputer, transmits messages recorded on the second magnetic tape mechanism sequentially via a telephone line. It has a control circuit and a transmitter.

A typical telephone answering device is shown in Figure 1, which includes a whistle used to adjust the volume, an up/down key 11, a stop key used to interrupt any action, and a stop key 2 used to play an incoming message. Includes playback key 4 used to play. The device further includes a two-way key 5 used to record two-way conversations, and an answer key 6 which is activated to accept messages in response to telephone calls.

Additionally, the device has a microphone jack T.

When a microphone is inserted into jack 7 and button 15 is activated, a memory money is blown onto the message tape. Furthermore, the device includes a series of code switches 8, which are:
In the illustrated embodiment, there are eight.

The switch 8 can be set to the binary 1 position or the binary O position by actuating a separate switch, for example on a pencil.
t, can be set to any predetermined code as shown in the diagram.

The cassette release lever 9 is the arrival message cassette 10.
Or, the delivery announcement cassette 11 is not provided for release. Ring selection button 12f is used to select the ring deposit to receive before the device responds. ■Ox time buttons 13° and 14 are provided. Activation of button 14 allows messages to be recorded without time limit, as long as the calling party is speaking. Activating button 14 allows the user to program up to 20
Incoming messages are recorded on the message tape as long as the calling party is speaking, up to a limit of 0 seconds.

The telephone answering device also has two announcement buttons 16 and 17. Activation of button 16 allows monitoring of outgoing announcements. When button 17t' is activated in conjunction with enable button 20, it is possible to record a broadcast announcement. There is also a message button 18.19. Button 18t - when actuated in conjunction with commit button 20;
The message will be deleted. Actuation of button 19 causes the message tape to be scanned in a faster than normal succession. A digital display is also provided, which will be explained later. The telephone answering device of FIG. 1 is operated by a π remote control 25 shown in FIG. The remote control device 25 includes a number of code switches 81 corresponding to the switches 8 provided in the telephone answering device of FIG. 1 and 1A1, which switches allow the device to be contacted. It is set to the same code as the switch in FIG. 1A. Both switch 8 and switch 81 can be set with the tip of a pencil, as shown in the first diagram, or with a similar tool.

When a user wants to listen to a message recorded on the telephone answering device shown in Fig. 1 over the phone, he calls his own telephone number, connects it to the telephone answering device T-line, and at the end of the announcement, remotely controls the message. Place the device 25 against the mouthpiece of the telephone and press the key 82. The remote control then transmits the code shown in FIG. 6 over the telephone line, activating the telephone answering system of FIG. It will be transmitted via the telephone li circuit.

The electronic circuitry of the remote control device 25 of FIG. 2 includes a conventional integrated circuit Zl, as shown in FIG. 3, and associated circuitry as shown. Integrated circuit Zl is manufactured by Silicon-Systems, Inc. of California and is designated by specification number 170265H. As an oscillator, this integrated circuit has a 32-bit shift register word counter-1 divider and a digital-to-analog converter (DAC). The control device is activated when the user presses pushbutton 52t--to ground pin S1. Two consecutive 32 31.25 millisecond tone bursts (bits) are generated; in the example, a binary 0 is generated at 683 Hz.
, binary 1 is 1024 Hz. Bit Pa II -
/ha shown in Figure 6-jaic, 00000000000
0000001110, an 8-bit code set by the user by the position of switch S1, and the last 01Jla order. The output waveform is a 5-stage sine wave yIi
A staircase approximation, which directly drives the speaker SPI. -6 After generating the secondary poison signal shown in Figure 6, the control device returns to the dormant state until activated again by actuating key 82.O Resistor R1 is the level setting resistor J! 1, the capacitor C1 acts as an AC bypass for the storage battery Bl. Xl is 32, 76
8Hz crystal, SPI is 40ohs (AIZ) 10
A signal divided by 24 (32 Hz) is observed at pin 6 (TPI) using a high input impedance (10 Megohm or higher) oscilloscope. pin 7
(TP2) displays the l-0 pattern representing the transmission code t- of 1024 Hz - 683 Hz.

The entire circuit of the eleventh telephone answering device is shown in FIG. 4A.

It is shown in Figures 4B, 4C and 51.

However, here only the parts of the circuit that are relevant to coded remote control will be described in detail.

As shown in Figures 4A, 4B, and 4C, the main logical control unit of the device is an R86500 8-bit microcomputer Z101, which has four 8-bit parallel bidirectional ports, 2 KB read-only. Storage device (RO
M), 64 bytes of immediate access memory g (RAM), tie i, counter and oscillator. The microcomputer operates at a speed of lWm5. crystal z101 no 2
By internally dividing the MHz frequency by 2 and using ``pipeline operation,'' processing is much faster than other microcomputers that operate at four times this speed.

Microcomputer z101 boat B (PBO-
PH1) is all deck control signals and solenoids.

It provides control of the motors, prompt signals, and commission signals for the audible chip z102 included in the device. ff[
A black computer has two ports used for display and keyboard scanning: C (PCO-PC?) and D (PDO-PD).
7). Port A (PAO-PA7) communicates with the audio chip z102, polling at 60Hz.

Used to communicate with the prompt signal tone circuit and to sense tape movement. In addition to the functions described above, the microcomputer z101 also performs ring selection and counting %ADJ VO
X, set and timed, VOX timeout.

Performs all counting and timing functions such as remote sensing and remote code verification.

Processing of the audio signal is performed by audio integrated circuit Z102. Jinre is a normal accumulation@ro. Communication between the microcomputer z101 and the audible integrated circuit z102 is entrusted,
This is done via the strobe and data lines. Microcomputer communication is in the form of a series 20-bit word.This word is a power amplifier, an @signal passing switch,
Digital volume control, relay control device,
Contains control data for the erase head drive, speaker silencing, and frequency response.

The audible integrated circuit z102 has automatic gain control (AGC) and
Also includes "audible digitization" circuits. Audio frequencies are digitized and sent to microcomputer 2101 (PAO) for functions such as VOX, ring detection and remote detection. A bias and beat tone oscillator is included in the audio integrated circuit. Current for the erase head El(1 and E1'I2 is supplied from the audio integrated circuit z102 through resistors R112 and Rxx3.
-1i: Contains this, which can be plugged in for the purpose mentioned above, and also includes a monitoring speaker 5PK-1. The device has recording and playback heads RPH1 and RPH1 and RPH1 and RPH1 and RPH1 and RPH1 and RPH1 and RPH1 and R, respectively, for announcement/pre-warning and message 9 tapes.
PH21-contains. Furthermore, the apparatus includes the aforementioned erase heads EB- for announcement tapes and message tapes, respectively.
1 and EH-2k electric. Message tape is motor M
driven by l. The parts mentioned above are included in the deck of the device. The device is equipped with suitable line plugs JIOI and J
l'i) 2 for a plug connection to the telephone line.

The circuitry associated with the keyboard is shown in FIG. As shown in FIG.
FE indicator (D8901-DS907) #Light emission tie for form display, T-do (IJD) (DS90B-D
S912) and a 3-digit, 7-segment display. The display and keyboard are scanned as follows. When displaying "dedicated graph" information, the information is microcomputer ZIOI's boat D (PDO-PO2)
bit 4 (PO2) of boat C to high (1)
Make it. Bits O-3 (PCO-PO2) and Bits 5 (PO2) of Boat C are set low (0). Bits 6 and 7 of Boat C (PO2, PO2) are set high (1). Remote Code Switch When reading 8, boat D (P
DO-PO2) to high and bit of boat C? (P.O.
Set 2) to high (1).

Set bits 6 and 7 (PO2, PO2) of boat C high (1), then set bits 0-4 of boat C. (P.C.O.
-PO2) scanned at mSo speed. The current source for the LED is constituted by high gain transistors Q901-Q908 and current limiting resistors R9ot-9os.

The operation of the integrated circuits included in this device is as follows; these are, for the most part, conventional MO8 integrated circuits.

Zlol R86500/lv(/o Conhyu f
i (MOS) 2101 is 8 bit! Microprocessor, 64 byte ClRAM, 2 byte ROM, 4
Two 8-bit bidirectional ports, counter and timer total π
The z102 M273 type OLSτ audio circuit and ffi device (MOS-) As mentioned before, the zx02a audio amplifier,
A.G.C.

Common components include an active f-wave generator, a digital volume attenuator, two oscillators, a low impedance power supply and an active current sink.

z103 LM301 operational amplifier (linear) Z104. Z
105 UPA 2001C large current driver (TTL)z
104 and Z105 are large current (300tsA) inversion parts
It is a vessel.

z106 LM38ON-8 Audio Power Amplifier FF (Linear') The z106 is an audio power amplifier with a gain of 34 dB and an output capability of 1 Watt.

The 2201 556/ima (type IIIiI) Z201A is configured as an oscillator. Pulse width and frequency are R
204, R206 and C203.

2201B is configured as an oscillator. The frequency is R
202, R2O3, R204 and C202K! tte 1k
LJ is controlled.

Z20474C762 J-shaped flip 7Q knob (0
MO8) Z204A is 4 on the first negative transition of its clock input (after bankrupt is set high), 'Q
” is configured so that it becomes high.

2204B c) Glue-type flip 7 is configured in the form of a Q-tube - i.e., @Q" toggles on a negative change in its clock input (after the calculation is set). (l becomes 0 or 0 becomes 1).

220574C161 Synchronous 4-bit Binary Counter (0MO
8) After count is set high (1), each positive change in its clock input causes the counter to increment.

That is, the first positive clock pulse is Q(0)t-high(
1) and the fourth positive clock pulse is Q[
2] to high (1).

25014093 Cut-Type "Nand" Schmitt Trigger Z5024029 Preset Capable Binary Increment/Decrement Counter (0MO8) Output A when a positive pulse is applied to 1P1 manual power.

B, C, and D are reset to logic zero. If the U/D input is held high (logic 1), the counter increments on every positive change in the clock input. If the U/D force is held low (logic 0), the counter decrements with each positive change of 20 ticks.

25034068 type 8-person Nando gate 250440
69 type HIX (7A-/During the sending announcement, the data is audible integrated circuit 2102
, along with head, playback EQ, V FILT and line RLY (off-hook)'t-enabled commission.
RECOUT, bias OUT, RD IN, beat sound oscillation head RLY, MICIN, 5PKR
Disable OUT, RECEQ, Decoy-1 and EH-2. The lines FBI and PB2 of the microcomputer are separated (
1) to drive the motor and operate the T-1 regeneration solenoid.

Q118 Ka ZD106 and Dl16 t-i1&L,
Te, turn to 17 and force z1o2's RD IN to crow (1). When the announcement tape runs, the audio frequency is digitized by the audio integrated circuit Z102,
It is supplied to the i-microcomputer 2101 via data m13. -=rThe microcomputer does not sense any activity on the data line for 3 seconds--then the T-1 announcement mode ends and the T-2 arrival message mode begins.

During the T-2 arrival message mode, data is provided directly to the audible integrated circuit z102 at the end of the announcement period T-1, and the RECEQ aal path RLY, bias OU
T, beat sound oscillator, RgCOUT, 5PKROU
T.

and HE-2, and El-1, V FI
L.T.

RD INe head IN, MICIN, playback IQ and heads FBI and PB4 are set high (1), Ml and 8D
Enable 3. The digitized audio frequency is sent from the performance circuit z102 to the microcomputer z101 via a data line. This data is examined by the OX algorithm, and if a signal with no repeats is received,
The T-2 mode will be maintained for the duration or until the maximum time limit is reached.

Remote detection of the signal received from the control device i25 in Figure 2 is performed as follows. The arriving signal (FIG. 6) is digitized by the audible integrated circuit 2102 and sent to the data path (PA
O) t- is sent to the microcomputer z101. Upon receiving a valid remote signal output, the microphone computer sends the data to the audio integrated circuit and outputs the playback EQ, head I
N x JivI! IRLY and (J heh FRLY
In addition to submitting t, El-1, DoH-2, RWCOUT
, VIA x OUT , V FILT, RD I
N. MICIN.

5PKRDUT, RECM and beat tone oscillator are disabled.

Micro Combiator @PBI and PB5 are high (1)
, enables M1 and Sn2', and rewinds the T-2 announcement tape. When the announcement table moves, 1
Switch S2 of the deck shown in Figure 1JB opens and closes to generate a pulse. Microcomputer (PA5) is 82
As long as it receives a pulse from υ, the device goes into the unwinding state. When message tape T-2 is rewound, the microcomputer lines FBI and PB4 go high (!
), energizing motors Ml and Sn3 (Figure 4B), thus placing the device in remote re-presentation mode. After playing all the messages, the microcomputer releases the T-2 direction solenoid (PB4) and the device goes into the T-1 reset mode.

In T-1 reset mode, the data is audible integrated circuit z10
2 and disables all inputs and outputs. 1iiPB1 and PB5 of the micro combinator are set high (1), Ml of the deck and 502 (T -1
rewind). These lines can be compared to 9, high (1) as long as 81 pulses enter PB4. The S1/curse is generated by switch S1. This switch opens and closes as long as the announcement tape T-1 is moving (see deck M in Figure 4B). When the pulses cease, the telephone answering device returns to its answering mode and is now ready to receive a second call.

Accordingly, the present invention comprises a remote control device that transmits remote control signals according to a predetermined code such that contact with a telephone answering device is achieved only when a specific code is transmitted over the telephone line. An improved microcomputer-controlled telephone answering device is provided.

Although specific embodiments of the invention have been illustrated and described, it will be understood that modifications may be made. It is to be understood that the following claims are intended to cover all such modifications that are possible within the scope of the invention.

[Brief explanation of drawings]

Figure 1 shows a number of switches set in predetermined positions so that contact can be made with the telephone answering equipment only when a tone code matching the predetermined code is received over the telephone line. FIG. 1 is a partially enlarged view of the telephone answering device shown in FIG. 1, showing how the code switch is set to any selected code. 2 is a perspective view of a remote control device incorporating the same number of code switches to operate the telephone answering device of FIG. 1; FIG. 3 is a circuit diagram of an electronic circuit included in the remote control device of FIG. 2; 4th A
4B and 4C are circuit diagrams of electronic circuits included in the telephone answering device shown in FIG. is the second
2 is a diagram illustrating a binary code tone signal transmitted from the illustrated remote control device via a telephone line to the telephone answering device of FIG. 1; FIG. Patent Applicant Agent FIG, 2 Procedural Amendment (D, 70/z/1948, 1, Indication of the Case 1 3, Relationship between the person making the amendment and the case) Haki T Applicant; ha 〒E-Ding -Oki, ryohantei inkoho0reike,
F”4, Agent 5, Date of amendment order Showa year, month, day (v
5) 6. Subject of correction

Claims (1)

[Claims] 1) In response to a ringing signal received via a telephone line, the first
during a period (T-1) of a first magnetic tape mechanism in which an announcement to be transmitted over a telephone line is recorded; and during a second period (T-2) following said first period. a first circuit means configurable to represent a predetermined digital code; and a first circuit means connected to the telephone line, the controller including a second magnetic tape mechanism for recording messages received over the telephone line. The first magnetic tape mechanism transmits an announcement signal via the telephone line, and receives the message signal from the calling party via the telephone line for recording on the second magnetic tape mechanism. audible circuit means for receiving a multi-bit binary code tone signal from a remote control device via a telephone line; 7'c @ beep signal f: A microcomputer that generates an output control signal when received from the control circuit, connected to the microcomputer, and which is connected to the output signal from the nuclear microcomputer. and a control circuit for responsively causing the second magnetic tape mechanism to successively transmit the messages recorded thereon over the telephone line. 2. The control device according to claim 1), wherein the circuit means 11111 includes a plurality of switches that can be manually set. 3) In the control device according to claim 1), a control device for transmitting a multi-bit binary code tone signal via a telephone line; A control device in which the signal is at a frequency of 1, representing binary 1 bits [+--, and the tone signal of another burst is at a second frequency, representing binary O bits. 4) In the control device according to claim 2), the control unit transmits a multi-1-bit binary code number, and the leading multi-1-bit part selected in advance is used for synchronization and verification. and further followed by a multiple bit pattern representing the set state of said switch. 5) In the control device according to claim 4), the control unit transmits a multi-pit binary code signal having a rear multiple bit order with a preselected N7C pattern for one separation. Device.