FR2608877A1 - TRANSMISSION SYSTEM USING TELEPHONE CENTRAL - Google Patents

Abstract

IN THE SYSTEM INCLUDING AN INDIVIDUAL CARD 3 BEARING A PERSONAL CODE, DETECTION MEANS 6A, 6B, ... SERVING TO DETECT ACCESS TO THE PLACE OR THE TELEPHONE STATION 1A, 1B, ... OF A HOLDER 4 OF THE INDIVIDUAL CARD IS INSTALLED, A MEMORY 7 ALLOWS THE RECORDING AND DELETION AND CORRESPONDING THE PERSONAL CODE OF THE HOLDER DETECTED OF THE CARD AND THE TELEPHONE NUMBER, THE CENTRAL CONNECTS TELEPHONE LINES ACCORDING TO THE MEMORY RECORDED IN THE PERSONAL CODE 7 AND TO THE TELEPHONE NUMBER. APPLICATION ESPECIALLY TO TELEPHONE NETWORKS WITH REDUCED ACCESS TIME AND WITHOUT TRANSFER IN CASE OF ABSENCE OF THE CALLS.

Description

Transmission system using a telephone exchange This

  The invention relates to a transmission system using a telephone exchange and capable of

  establish contact with a called interlocutor, in a brief

  time. To converse by phone with a specific contact, the handset of a neighboring telephone is first picked up, after which a hook switch

  is operated and the circuit of a central office, corresponding to

  laying on the telephone, is connected. Once

  the telephone number of an intercom telephone

  to be called was composed on a dial, the center

  phone tral receives the pulse of selection so

  select a line from the telephone

  called operator, and then connects the two telephones

  c. He is then ready to converse by telephone with

  called speaker. In the case where the called party changes location, a repeater can be provided so that the call is transferred to him. But in this case the transfer must be

  asked each time the called party is absent.

  In view of the problem mentioned above, the invention provides some improvement by which the access time is reduced and a transfer need not be requested when an interlocutor to be called

is absent.

  That is, the transmission system using a telephone exchange according to the invention includes an individual card having a personal code, detection means for detecting access to the location.

  o the telephone set of an individual card holder

  duel is present, and a memory capable of making a recording

  and erasure and used to match

  this is the personal code of the detected card holder and the telephone number, and the central office connects telephone lines in accordance with the registered personal code

  in the memory and at the telephone number, an access of the

  the individual card is detected automatically by the detecting means and a cardholder code number and a telephone number are stored in the memory. So, since the telephone lines are connected in accordance with data stored in the memory, the access time is reduced and a transfer does not have to be requested each time the interlocutor before

to be called is absent.

  Other features and benefits of the

  present invention will emerge from the description given above.

  after reference is made to the accompanying drawings, in which - Figure 1 is a block diagram showing a transmission system using a telephone exchange,

  in accordance with one embodiment of the present invention.

  tion; - Figure 2 is a block diagram showing in detail the transmission system using a telephone exchange according to Figure 1; and FIG. 3 is a block diagram representing

  another embodiment of the present invention.

  We will give below a detailed description

  preferred embodiments of the invention.

  Fig. 1 shows a block diagram showing a transmission system using a telephone exchange according to an embodiment of the invention. Detection means 6a, 6b for detecting an access of a

  holder 4 of an individual card 3 having a code

  sonnel, and used to send the personal code issued from the individual card 3 and a telephone number (code provided for parts) to a central office 5 are provided at the door frames 2a, 2b, ..., wherein

  the telephone sets la, lb, ... are installed. The center

  tral telephone 5 is equipped with a memory 7 allowing

  recording and erasure and serving as a means of

  the personal code received and the telephone number,

  and telephone lines connected to the telephone

  1a, 1b, .... are connected in accordance with the personal code and the telephone number stored in the memory 7. In addition, the central office 7 has, as was the case up to now, a selection function for the connection of

  the telephone line corresponding to the telephone number.

  In the transmission system using a central office, arranged as indicated above, when the holders of the individual card 3 enter the room 2a for example, the detection means 6a located at the door frame detect and send a personal code of the individual card 3 and a telephone number of the coin 2a to the telephone exchange 5. When

  reception of this code, the central office 5 registered

  be the code in the memory 7, together with the phone number. In this case, if the phone number of the telephone set in the room 2a is for example 1234, then an address corresponding to the N 1234 of the memory 7 is selected and the personal code mentioned above is recorded there. Similarly, if a person carrying another individual card enters room 2a, a personal code of the individual card is

  stored in memory 7 at the same address. Then, when

  that the holder 4 of the individual card 3 passes from the room 2b to the room 2a, the personal code is stored in the memory 7 to the address corresponding to N 2345 and the personal code recorded in this location at the moment when the

  cardholder has entered room 2a, is simultaneously

deleted.

  Then, in the case where the holder 4 of the individual card 3 is called to the telephone, a number of

  personal code of the individual card 3 is composed of

  dran. In this case, the telephone exchange 5 searches for the number

  ro the telephone set in the room for which

  the personal code of the individual card 3 is recorded,

  in the memory 7, and establishes a selection for the connection

  line of the telephone. The caller

  to be called, namely the holder 4 of the indi-

  vidual 3, is present in the room in which

  the telephone set and therefore the time to

  this is reduced and telephone costs can be

wagered all the same.

  As has been described, an appeal does not have to

  need to be maintained cyclically, for example at the subscriber's telephone line of a section throughout an entire station, and that is why a person making a phone call will not stay on hold for such a long time and will not be irritated. Since the registration

  and the erasure in the memory 7 are made automatically.

  according to signals delivered by the detection means 6a, 6b, .... a transfer does not need to be

  asked if the subscriber moves to another location

  right, and this prevents the risk of not joining a person in the event that it moves to

another place.

  Signals (personal code and corresponding code)

  parts) are issued and received by infrared rays.

  red and therefore a range of

  light to eliminate interference with external signals. So a battery pack

  energy, radiation reception and emission

  infrared, a modulator / demodulator circuit and

  very elements are incorporated in the individual map and

  its shape is designed so that it can be hooked simply

  on a breast pocket or similar

  ford. As described above, the system

  also allows calling, by dialing a numberurunr.

  dial, the personal code number other than the number of the

  normal telephone, which is achieved through discriminatory means

  provided in the central office 5. Thus Figure 2 shows a block diagram giving details of

  this system and in which discriminatory means

  by discriminating a telephone set corresponding to the number stored in the memory 7, in accordance with the personal code number when it is dialed a dial, which triggers the connection of telephone lines. The discriminator means 8 comprise a discriminator circuit 8a

  used to determine whether a selection signal is

  This is the purpose of the call, and another discriminator circuit 8b is used to determine whether or not the call is the one corresponding to the personal code number. On this subject, the code number of Sir A

  is fixed beforehand as being, for example, the number

  "0001" and that of Mr. B is set as "0002", and therefore when Mr. A is present at

  where the telephone set (N 1234) is installed

  For example, the number "9-1234-0001" may be

  on the dial on the telephone or a code

  sent to the detection means 6a from the individual card will be detected, causing the sending of a signal

  synonymous with the previous number "9-1234-0001" at the central office

  5. The discriminating means 8 receive a signal

  number selection via the central telephone

  5, but decide that the first digit "9" does not indicate a call, but an operation that applies to the memory 7. Therefore an address of the telephone number located

  in the memory 7 is positioned by means of the figures

  "1234", and the personal code number "0001" is registered.

  in this place. So a move of Mr. A or his presence in the position o the telephone

the is installed, is registered.

  Here we will describe the case where Mr. A is called on the phone. When the code number "0001"

  of Mr. A is composed on the dial in a normal operation.

  the discriminator means 8 establish that the first digit "0" for example indicates a call corresponding to the personal code number in the selection signal sent by the central office 5, which triggers a search

  in memory 7. If the phone number is registered

  stored in this memory in correspondence with the code number "0001", then the particular telephone is selected and a connection command is sent to the central office

telephone 5.

  So, if Mr. A moves to a position where telephone number lb, numbered "1235" is installed, analogously the number "9-1235-0001l will be dialed, then the personal code number" 0001 "of sir A and the telephone number" 1235 "are correspondingly stored in memory 7, and

  the previous number "1234" is simultaneously deleted.

  As described above, when dialing on a dial a usual telephone number "1234"

  for example), a connection order for the telephone

  that bearing this number is sent to Central 5, which is working

then as a normal central.

  Fig. 3 is a block diagram showing another embodiment of the invention. This shape

  is the one for which a circuit for

  signals used to connect telephone lines when receiving a number selection signal.

  The personal code stored in the memory is provided in each

that telephone.

  In the drawing, 1a, 1b denote telephones installed respectively in rooms 2a, 2b and signal processing circuits 9a, 9b are provided in all telephones. The signal processing circuits 9a, 9b have a memory capable of recording and erasing the personal code number of the holder 4, which is transmitted from the individual card 3, and receive selection signals of the personal code numbers (Nal to Na5, Nbl to Nb5) for connection to the telephone sets 1a, 1b. The reference numerals 6a, 6b represent detection means arranged at the level of door frames of the

  respective parts 2a, 2b and which detect an access of the

  4 when the cardholder enters the rooms 2a, 2b o the telephone sets

  la, lb are installed, the personal code number is registered

  memories of the two processing circuits of

  9a, 9b and when the cardholder comes out of these

  pieces, the personal code number is cleared from these memories.

  Reference numeral 10 denotes a personal code calling unit and reference numeral 11 denotes a unit

registering code numbers.

  The operation will be described below. Individuals (from plant personnel and the like), who have access to parts 2a, 2b, receive personal code numbers and hold individual cards 3 allowing

  sending a code number signal by means of infra-red

  intermittent reds. Then, if the holder 4 of the individual card 3 having the code number "Nal" enters by

  example in the room 2a, the detection means 6a detects the

  then initiate the registration of the personal code number "Nal" in the memory of the signal processing circuit 9a. On the other hand, if a person having the code number "Na5" for example leaves the room 2a, the detection means 6a detect this fact and the code number "Na5" is deleted from the memory of the processing circuit of signals 9a. Therefore registration and erasure for persons are executed in all rooms 2a, 2b and the code numbers recorded in the circuit memories

  signal processing 9a, 9b are used as

  individual rosettes of telephone sets, lb. It is-

  that is, when a dialing selector signal entered in the code number registration unit 11 is the

  which corresponds to the personal code number,

  killed in the signal processing circuits of the parts 2a, 2b are searched by means of the code call unit 10

  personnel, and a telephone located in the room and

  recorded in these memories is selected. For example, a call using the code number (Nal) should sound

  the ringing of the telephone in the room 2a.

  In this case the code number can simply be dialed following the code number as described for the call by means of the personal code number, and therefore it can be selected directly from the wire of the code. line. Otherwise, only the code number is dialed, then an operator compares that code number of a called subscriber to the personal code number at a manual switch so as to redial that number. So when the

  the code number of the subscriber to be called is not identical

  stored in the memories of the two signal transmission circuits 9a, 9b, the call is returned to the switch

  manual to the operator, a busy signal indicating "a quit-

  his seat "is sent repeatedly to the calling side,

And so on.

  As described above, a large number of people

  can use the individual telephone

  or more, a multiplicity of telephones is

  establishing links between parts and even in the case where the user is not specified, the call may be

  forwarded to a destination interlocutor.

(r) FRENCH REPUBLIC 2 608 878

NATIONAL INSTITUTE

OF INDUSTRIAL PROPERTY

  PARIS This issue did not result in any publication Co Co e o o N oe IL

Claims (5)

  1. Transmission system using a central office and including an individual card (3) carrying a personal code, detection means (6a, 6b, ...) for detecting access to the place where the telephone set (the ,   lb, ...) of a holder (4) of the individual card is installed.   a memory (7) for recording and erasing   ment and matching the personal code of the   detected the card and the telephone number, characteris-   in that the telephone exchange (5) connects telephone lines in accordance with the registered personal code   in the memory (7) and the telephone number.   2. Transmission system using a central office according to claim 1, characterized in that the memory (7) is provided in the central office (5). 3. Transmission system using a central office   telephone according to one of claims 1 or 2, characterized   that the memory is provided in each telephone nique (la, 2a, ...).   4. Transmission system using a central office   Telephone according to one of claims 1 to   3, characterized in that the central office (5) connects telephone lines also from the introduction   personal code from a dial.   5. Transmission system using a central office   Telephone according to one of claims 1 to   4, characterized in that the individual card (3), the means   detection (6a, 6b, ...), the memory (7) and the telephone exchange   (5) are in reciprocal communication through infrared rays.