DE19838944A1 - Caller identification system with audible announcement for telephone apparatus - Google Patents

Abstract

The system has a phonetic storage device which converts received alpha numeric caller identification data into audible signals, that are reproduced over the speaker during a period in which the telephone is isolated from the network. The system includes a call detection device and a decoder device which detects and decodes caller identification data, such as a telephone number and a name, in signals received from a telecommunications exchange. A device is provided for detecting a lifted handset condition and for activating an electronic relays, which is connected with a central processing and control device for isolating the telephone apparatus from the local telephone network. A phonetic storage device is connected with the central processing- and control device for converting the received, alphanumeric caller identification data to an audible signal reproduced over a speaker during the period, in which the telephone apparatus is isolated from the network. The caller identification data are also displayed on a liquid crystal display. A control device enables the user to accept or to dismiss the call.

Description

The present invention relates to a method and system of Access to a remote identification that the phone device, especially a cordless phone, from the signal lines a phone company isolated and back with them connects to an acoustic message of a callerid tification next to the LCD display.

A conventional caller identification device comprises often an LCD display to show the phone number of the incoming call and the name of the calling party, whereby it is made easy for a user, an identifying one Number of a caller and his name before picking up the To see the handset. It is only practical for the called to locate a subscriber near the location of the phone decide which of the incoming calls are answered can.

However, such a representation function is the Identi caller s specification on the LCD display not for the called open subscriber designed a single subscriber line with multiple branches or a cordless telephone device use a base station and a cordless receiver ger includes. Since the LCD display is directly on the individual Ba  Sis unit of the multi-branch or cordless telephone unit the called subscriber must go back to the Callers on the LCD display for an incoming phone call identify to check him if the called Participant carries the cordless receiver with him and himself not in a room with the caller ID displayed located. In addition, the LCD display is for a called Participants with visual problems do not make sense and do not offer any Advantages.

The closest prior art for a caller identification system with handset announcement is disclosed in US Patent No. 5,526,406 issued to Luneau entitled "DEVICE FOR ANNOUNCING A CALLER". However, this patent only emphasizes the voice announcement process for caller identification rather than display and does not describe the operation of detecting the pickup and isolation process to process the subsequent announcement, except for an impractical radio frequency (RF) interface of the cordless phones for remote isolation of the Handset from the telephone network. U.S. Patent No. 5,526,406 describes that "the caller's name or telephone number is announced directly through a built-in speaker" immediately after it "receives the ICLID signal subsequent to the first ring during the idle period," one of which has such device has the following disadvantages:
Since the device for announcing the calling subscriber is used to control the relay to isolate the telephone device from the central telephone switching system after the first ringing signal sent by the central telephone switching system has been detected and then begins to announce the incoming telephone number or the name of the calling subscriber via the additional loudspeaker or the handset during a specific time interval in order to replace the following ringing signals until the announcement has ended. The called subscriber, who is away from the set, cannot perceive the incoming telephone call due to a sequence of "suppressed call signals" following the first call signal and can miss the announced caller identification information after the short announcement interval.

The present invention arose from the above-mentioned Disadvantages of the conventional and known callers mitigate identification devices with voice prompts and encounter, and is on a means of detecting the decreased state and for isolation. The invention verbes restores the state of the art by creating a new lift detection On technology is used to elegantly provide the necessary relay switch to control, and creates a repetitive aku tical identification announcement by the listener, so that the Anru identification can be fully recognized. The invention can be used in all telephone devices and multi-branch phones serve the premises of the called subscriber as can also be used with cordless phones.

It is the main object of the present invention Method and system for caller identification with Hö reransage to create an acoustic caller identification to the listener with a novel detection of the off-hook State and intelligent switching of the relay. Ent speaking of an embodiment of the present invention created a caller identification system with handset announcement, that between a telephone device and a telephone exchange  system of a telephone company using the a / b call signal line tings (tip and ring signal lines) is switched, and includes a commercial caller identification decoder and one Memory to record and save caller identification chern, a normally closed electronic Re relay switch, which is designed between the signal line to be switched, an acoustic storage unit for sending audible messages according to the identifications onsdaten to the receiver of the telephone unit, and a main processing and control unit with the electronic Relay switch is connected to it in a closed to control or open state, and also the acousti cal storage unit for sending audible information to the Hö activated.

It is also an object of the invention to provide a new means for Detection of the off-hook condition and control of the relay to create with which the telephone company does not get in It is notified that the handset has been picked up.

It is also an object of the invention to such Way to work that the calling party Systems is not aware and only of the signal lines hears the ringing tone.

It is also an object of the invention to provide audible identi Send information to any listener who is not near the caller identification display for more subject branching telephone devices, which is a share individual telephone line.

It is also an object of the invention where it is too dark is to see the caller ID on the LCD  and for those with limited eyesight, to create an audible caller identification and the Check phone call.

It is also an object of the invention, the called party Participant the audible caller identification by an ent remotely located handset of a cordless telephone device to provide.

It is also an object of the invention to provide a caller ride tification system with handset announcement for any existie to create a mobile phone that has no extra charge in the Switching system of the telephone company caused.

It is another object of the invention to be universal Withdrawal means and taxes to create that for all signaling systems of the telecommunication networks in the total value is appropriate.

Other objects and advantages of the present invention will become after carefully reading the detailed description with appropriate reference to the attached drawings become.

Fig. 1 is a diagram showing a caller identification system with handset announcement according to the present invention, which is connected between a normal telephone set and a telephone exchange system of a telephone company.

Fig. 2 is a diagram showing a caller identification system with handset announcement according to the present invention, which is connected between a cordless telephone set and a telephone exchange system of a telephone company.

Fig. 3 is a schematic circuit diagram of the call identification system with handset announcement, as shown in Figs. 1 and 2.

FIG. 4 is a schematic circuit diagram of a unit for detecting the lifted state and controlling the relay as shown in FIG. 3.

Fig. 5 is a flowchart showing the procedure and the operational steps of the caller identification system with handset announcement according to the present invention.

Fig. 6 is a flowchart showing the method and the operational steps of the method for detecting the off-hook state and control of the relay according to the present inven tion.

It is the main object of the present invention that novel means of isolating and reconnecting phones create signal lines by creating irregular abrupt signal Line voltage changes during specific time intervals due to the withdrawal process within the recognition time of the local telephone exchange system to control the relays circuit can be detected before the local telephone exchange system recognizes that the telephone set has answered, and continues to send a directed call signal to the return the calling party; and then the acoustic Message according to the incoming caller identification the called party via the handset / cordless receiver of the telephone set to decide whether the  User who is unable to access the caller ID display or away from it, the phone want to answer the call or not. The invention can only the places where a caller identification is used onsservice is provided by the telephone company.

For an incoming call, the identification signal of the calling party with a standard commercial IC chip be decoded for caller identification decoding to the identification data of the called subscriber to provide. The caller identification data will be then in the storage unit according to an addressing rule saves. Detected as soon as the handset is lifted our invention controls the lifting process and directly controls the Relay switch to switch the user phone unit from the phone isolate system within the detection time and then will the number of the caller and the name by the handset or cordless receiver repeatedly issued as often as this it is asked for. The audible message is in a phonetic Storage unit installed so that it with appropriate Identification data corresponds in the memory.

The means of detecting the off-hook condition and controlling of the relay includes a normally closed one electronic switch that serves to switch between the signal lines of a telephone system and a telephone unit A main circuit control unit for controlling the relay switch between a closed one status and an open status to prevent the telephone unit is connected to a calling party, as soon as it was removed from the fork hook, and a pho netic storage unit for sending an audible caller identification to the listener. Since the telephone unit of the angeru  open subscriber from the telephone switching system through the Detection of the off-hook condition (lifting the handset) isolated the central office is the (open switch state) Telephone company not aware that the tele phone unit has been removed (lifted) and therefore drives continues to return the callback signal to the caller to answer the Display response wait status. The calling party is unable to hear the acoustic message, but hears a call signal due to the isolation between the tele system and the telephone device of the called subscriber.

The called subscriber can then dial the telephone call by depressing a predetermined button on the Te keypad or simply press the fork switch of the Telephone device to accept to the normally closed Switch state to return, or through the phone call Hang up the telephone unit and keep the electronics open switch until the subscriber calling the Te phone hangs up to reject. (The switch returns to norma reclosed status by the duration de is tektiert, since the on-hook operation and the call state of signal lines has passed to ensure that the called party rejects the call and the calling party Subscriber also hangs up the phone to the signal line release).

By adapting different ones on the market Caller identification detectors can be this invention Caller identification information according to the different network factory standards of telecommunications worldwide deco dieren. The most essential technology of the invention is that novel means for detecting the removed condition in order to the called party's telephone signal  lines of the telephone system for various systems of ge isolate the whole world, and the intelligent control mechanism of the electronic relay switch for selecting the on Acceptance or rejection status of the phone call. While the phone off the central office of the phone company is isolated, the telephone set is controlled by a control power supply within the automatic identifi cation device for an incoming telephone call and also receives repeated caller audible messages information by the listener.

Referring now to the drawings and initially to FIG. 1 and FIG. 2 reference. A caller identification system with handset announcement can be used in accordance with the present invention with a normal telephone set 40 that includes an receiver 401 or a cordless telephone unit 41 having a base station 42 and a cordless receiver 43 . The caller identification system with handset announcement is switched between the normal telephone device 40 / the cordless telephone unit 41 and a telephone switching system 10 of a telephone company via "a / b" signal lines (tip and ring signal lines). When an incoming telephone call is received in the telephone switching system 10, a signal having a caller identification information to the telephone set 40/41 of the called subscriber will be sent over the Anruferidentifikati onssystem with receiver announcement.

Reference is now made to FIG. 3. The caller identification system with handset announcement according to the present invention comprises a main circuit control unit 21 , a phonetic control unit 22 and a normally closed relay switch 23rd

The control circuit 21 of the main circuit, which is integrated with a commercial caller identification system decoder, can be used to detect ringing, decode the line signal containing the caller identification, sort, store and display caller identification data of an incoming call and can also be used to control the operation the associated components can be used. The control circuit 21 of the main circuit comprises a call detection unit 211 which is connected to one (call line) of the two telephone signal lines 30 to detect the voltage of the incoming call, a decoding unit 212 which is connected to the call detection unit 211 for detecting and decoding the telephone number and identification the incoming call is connected and cooperates with it, a central processing and control unit 213 , which is connected to the decoding unit 212 , a memory 214 , which is connected to the central processing and control unit 213 , in which a database stored which contains a plurality of telephone numbers and identifications corresponding to the decoded incoming call messages, an LCD (liquid crystal display) coding unit 215 which is connected to the central processing and control unit 213 , an LCD display 216 which is connected to the LCD Coding unit 215 is connected and together with it acts, a control unit 217 for reconnecting and rejecting, which is connected to the central processing and control unit 213 , and a unit 218 for detecting the lifting state and controlling the relay, which is connected to the electronic switch 23 and between the central processing and control unit 213 and the phonetic memory unit 22 is connected.

The central processing and control unit 213 , the memory 214 and the phonetic memory unit 22 are connected to one another via an address bus. In addition, the decoding unit 212 , the central processing and control unit 213 , the memory 214 , the LCD coding unit 215 , the unit 218 for detecting the lifting state and controlling the relay and the phonetic storage unit 22 are all connected to one another via a data bus.

The phonetic storage unit 22 is connected to the central processing and storage unit 213 and the electronic switch 23 . The phonetic storage unit 23 includes a variety of options regarding the caller's response, which includes voice tones corresponding to alphanumeric characters such as single numbers and letters, and also the tones corresponding to a variety of vocabularies so as to include the incoming identification information contained in the line signals is included, which has been detected by the control unit 21 of the main circuit to convert into audible speech, which can be transmitted to the cordless receiver 43 via the base unit 42 of the cordless telephone device 41 , or which are heard by the receiver 201 of the normal telephone device 40 can.

The normally closed electronic switch 23 is / connected to a signal line 30 of the telephone set 40 and 41 includes a relay, a reed switch or a transistor. The electronic switch 23 may for controlling the insulating / Verbindefunktion the signal line 30 between the Te lefoneinheit 40/41 and the telephone switching system 10 of the Te lefongesellschaft be used by the control unit 21 of the main control processing.

Reference is now made to FIG. 4. The lifting state detection and control unit 218 according to the present invention includes a bridge circuit unit 2181 , a ringing voltage and duration detection unit, and a 2183 handset lifting state detection unit.

The bridge circuit unit 2181 is arranged between the signal line of the telephone switching system and the detection unit 2182 of the ringing voltage and duration in order to rectify the electrical voltage of the incoming ringing signal and various line supply DC voltages to positive values as a later reference. The ringing voltage and duration detection unit 2182 is then connected to the central processing and control unit 213 to detect the high level voltage (previous ringing voltage of the positive period plus a certain DC voltage before rectification by the bridge circuit) and a low level voltage (previous ringing voltage of the negative period plus a certain DC voltage prior to rectification by the bridge circuit 2181 ) by providing the voltage keeper function, and in order to store the related time duration data in the central processing and control unit 213 . The receiver lift state 2183 is connected between the rectified voltage and the central processing and control unit 213 to monitor the ringing voltage and the time change of the signal line to check the lift state. The handset off-hook detection unit 2183 is also connected to the regulated power supply to power the system while it is isolated from the telephone system.

Referring now to FIG. 5 and FIG. 6 taken reference. In operation, if line signals or call signals of an incoming telephone call enter the telephone switching system 10 through a calling subscriber who selects a sequential number of address signals for switching through by the service, then the control circuit 21 of the main circuit of the caller identification system with handset announcement can be put into operation, in order to detect and identify the signal via the call detection unit 211, to decode the signal into caller identification data by means of the decoding unit 212 and to store the identification data in the memory 214 .

If the telephone unit 40 / ring 41, the ring signal is first rectified by the bridge circuit unit 2181, and then the voltage level and the duration of the call signals as a reference for subsequent detection of the Abhebezustands by the detection unit 2182 of the Rufspannung- and stored duration is. If the called subscriber 401/43 the telephone unit 40 / lifts the receiver 41 is to be changed from given line voltage of the telephone exchange system 10, due to the resistance of the load for the call signals, which is different from the load of the receiver 401/43. The detection unit 2183 of the Hörerabhebezustands the unit processing control unit 21 may be used to simultaneously the change of the signal line voltage and signal duration animals Detek and then a control signal to the normally closed electronic switch 23 to output 218 of Abhebedetektions- and relay control of the master control, then in the open status can be switched or kept in the closed status depending on the situations of the off-hook or on-hook status.

In the meantime, the telephone switching system 10 will need the telephone company for a certain time (detection time) to the lift-off or tify identical to on-hook status signal is sent from the telephone unit 40/41 of the called subscriber. Within the detection time, the electronic switch 23 , which is closed in the normal state, is set in an open (or insulating) state due to the detection by the control unit 21 of the main circuit. Since the relay switching process will be considered within the detection time as abrupt electrical interference on the subscriber line, which results in short lifting pulses on lines that are on hook, the processor of the telephone switching system does not go into operation until the new fork condition for a predetermined detection time lasted. Therefore, the telephone switching system 10 will continue to send the call signals based on the received message it received from remaining in a status as if the called subscriber was not answering the phone call.

The incoming phone call can then be identified and displayed on LCD 216 . The control circuit 21 of the main circuit can then transfer the information stored in the memory 214 to the phonetic storage unit 22 after the detection and decoding process, in which the audible identification information is the individual numbers for composing the incoming telephone number of the caller, the alphabetical letters for composing the name of the calling party and / or other predetermined messages.

The phonetic storage unit 22 will repeatedly send an audible message corresponding to the incoming telephone number, the name of the calling party, or the like, which can be received or heard by the cordless receiver 43 of the telephone unit 41 via the base unit 42 , or directly by the receiver 401 the telephone unit 40 can be received or heard to be received by the called party.

If the called party decides to reconnect and answer the incoming telephone call, he / she can press a predetermined key on the field of telephone unit 40 or cordless receiver 43 of telephone unit 41 via control unit 217 to reconnect and reject. The central processing and control unit 213 of the control unit 23 of the main circuit can then be taken into operation in order to send an acknowledgment signal to the electronic switch 23 , which can then be reset to signal the closed line state so that the anru the calling subscriber and the called subscriber can be connected again for communication until the conversation has ended and the calling subscriber hangs up.

If the called subscriber decides to reject the incoming telephone call and not to answer it, he / she can press a further predetermined key on the field of the telephone unit 40 or the cordless receiver 43 of the telephone unit 41 or simply hang up the handset after the issued identification . The central processing and control unit 213 can then be operated in order to keep the electronic switch 32 in the open status (isolating status). Therefore, the phone unit is 40/41 in turn continue with the call or can (not shown) to an answering machine connected thereto are switched. After the calling party hangs up, the electronic switch 23 can again be returned to the closed state via the central processing and control unit 213 of the control unit 21 of the main circuit.

The caller identification system with receiver announcement according to the present invention may be such that the is of the called subscriber possible / to identify the incoming telephone call through the handset 401 43 without the Notwen consists speed to go to the LCD display to receive the information of the incoming phone call. The system is particularly suitable for called subscribers who are old or visually impaired people.

Therefore, the caller identification system with handset announcement according to the present invention has the following advantages:

• 1. If the caller identification system with handset announcement Call signal detected by the telephone switching system Telephone company was sent, the caller ID isolates fication system with handset announcement the telephone unit not from the telephone switching system, while it is only the line chip Change in the output voltage of the telephone exchange system stems due to the difference between the resistance of the Load the call status and that of the load of the recipient watches. The caller identification system with handset announcement is the called party's telephone unit from the telephone switching system only then via a new lift-off detection iso when the handset is picked up (or picked up) which efficiently shortens the insulation time when necessary is agile.
• 2. The caller identification system with handset announcement can effi the insulation time is shortened, which means that the Using the supply unit is saved, in particular for a telephone unit, whose supply of batteries by to be led.
• 3. The called subscriber can repeat an entire hear phonetic information when he picks up the recipient,  and eliminates the possibility of missing or receiving the phonetic information in the middle while the phonetic information Storage unit that sends out phonetic information.

Although the present invention has a certain degree has been described in detail, it is clear that the present disclosure made only by way of example and that many other possible modifications and changes can be made without sacrificing the scope and content depart from the present invention.

Claims (4)

1. Caller identification system with handset announcement for the announcement of the identification of a calling subscriber for a telephone unit which is provided with an internal relay-switching control mechanism, by the detection of the off-hook state of the handset by continuous observation of the current or voltage change in the telephone signal lines, wherein the Telephone unit is connected to a telephone switching system which provides a caller identification service for the telephone unit, wherein the caller identification system, when connected, is located at the location of the called subscriber, which comprises:
Call detection means for detecting a ringing frequency or a voltage provided by the telephone switching system for calling the telephone unit to indicate an incoming call to the telephone unit;
Decoding means connected to the call detection means for detecting the caller identification signal and decoding the signal into the caller identification data such as telephone number and name;
central processing and control means connected to the decoding means and the call detection means for overseeing the caller identification data to output the information corresponding to the identity of the calling party and to set up the storage means for the caller identification;
Means for detecting the lift-off state and controlling the relay connected to the central processing and control means for isolating the telephone unit from the local telephone exchange system, the electronic relay being in the open state from the normally closed state within the detection time in response to the irregular abrupt voltage variation of the signal lines is switched during the specific time interval based on the detection of the off-hook condition before the local telephone switching system detects that the telephone unit has responded so that the local telephone switching system has no knowledge that the telephone unit has answered and continues to turn on a redirected call indicator send the calling party back;
Power supply means connected to the central processing and control means, connected to the electronic switch, and connected to the phonetic storage means for supplying the phonetic announcement and the telephone unit through the internal regulated power supply during the time that the Means for detecting the lifting state and controlling the relay is activated;
phonetic storage means connected to the central processing and control means for transforming the alphanumeric caller identity information provided and activated by the central decoding and control means to generate an audible signal that identifies the calling party through the handset during the isolated period by the novel lift-off detection means;
LCD display means connected to the central processing and control means via the LCD coding means to display the caller identification on the display panel;
Reconnect and reject control means connected to the dual tone multifrequency decoding unit and the central processing and control means to accept or reject the incoming call by depressing the predetermined key on the field of the telephone unit or by changing the on-hook voltage the telephone unit and observing the on-time period to control the open or closed state of the signal lines between the telephone unit and the telephone company's switching system. 2. The caller identification system with handset announcement according to claim 1, further comprising:
a novel means of detection and control of the relay, which is arranged between the rectified line voltage and the central processing and control means to continuously detect the high and low level ringing voltage and the corresponding idle period. The detected results are brought up to date intelligently from each call period and stored by the central processing and control means for further detection reference. The detection means of the lifted handset then continuously monitors the line voltage and change in duration and then compares the results with those stored as a reference if the lifting process is in force or not. The relay lifting and control means also detects the command signals to reconnect or reject the communication and then sends a signal to the central processing and control means to operate the electronic switch so that it is in a suitable position localized. After the conversation of the reconnected telephone call, the means for detecting the lifting and control of the relay will check the on-hook process by detecting the line voltage and the caller identification system with handset announcement will return to its normal line status to wait for another telephone call. 3. A method for integrating the novel means for detecting the lift with a commercial caller identification decoder and for announcing the caller identification to a called subscriber by the handset, which is carried out by a device which is connected to a telephone unit of the called subscriber and a local telephone exchange system and wherein the device is located at the location of the called party, which comprises the following steps:
Detecting a ringing signal sent from the telephone switching system to the called subscriber's telephone unit to identify an incoming call and put the connected devices into operation;
Decoding the caller identification signal into a telephone number and name by commercial caller identification decoders and controlling and directing the information to specified addressable data stores;
Detecting a ringing voltage and duration provided by the telephone switching system to call the telephone unit and storing the information as another reference for the novel means of picking up and intelligently isolating;
Isolate the called party's telephone unit from the telephone switching system by opening the normally closed switch within the detection time in response to the irregular abrupt change in signal line voltage during the specific time interval due to the novel pickup detection before the local telephone switching system detects that the telephone unit has answered while the local switching system is not aware of the answering of the telephone unit due to the isolation between the called party's telephone unit and the telephone system and continues to send a callback signal back to the calling party;
Supplying the telephone unit of the called subscriber by a regulated voltage supply means;
Processing the detected signal corresponding to the identification signal of the caller line into a signal which corresponds to the identity of the calling subscriber;
Activating the phonetic storage unit and generating an audible message announcing the identification of the calling subscriber by the telephone receiver of the called subscriber;
Reconnect the called party's phone unit to the local telephone switching system if either the called party decides to accept the calling party's call by depressing a predetermined button on the field of the telephone unit, or simply by hanging up on the fork to answer the call through the Monitoring the voltage change and the associated time interval of the signal lines;
Resumption of the status of a normal telephone line and a caller identification system with handset announcement after the calling party hangs up and waiting for further telephone calls. 4. Caller identification procedure with handset announcement according to An saying 3, wherein the system for integrating the Multitasking communication process in that Telephone device / cordless telephone as individual Component is installed, whereby the An Call monitoring function is greatly improved.