CA2005032A1 - Address code modification in a transmitter receiver pair - Google Patents
Address code modification in a transmitter receiver pairInfo
- Publication number
- CA2005032A1 CA2005032A1 CA 2005032 CA2005032A CA2005032A1 CA 2005032 A1 CA2005032 A1 CA 2005032A1 CA 2005032 CA2005032 CA 2005032 CA 2005032 A CA2005032 A CA 2005032A CA 2005032 A1 CA2005032 A1 CA 2005032A1
- Authority
- CA
- Canada
- Prior art keywords
- address code
- storage means
- modification mode
- receiving apparatus
- receiver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Landscapes
- Alarm Systems (AREA)
Abstract
ABSTRACT
A method and apparatus for modifying an address code in a receiver to match an address code of an associated transmitter is disclosed. Upon activation, the receiver is placed in a modification mode. The transmitter is then activated to transmit an address code to the receiver. The receiver, while in the modification mode, receives the transmitted address code and stores data corresponding to the transmitted code in memory. The receiver unit then exits the modification mode. Thereafter, upon activation of the transmitter unit, and upon reception of an address code matching that stored in the receiver memory the receiver generates a control signal to initiate a desired control function.
A method and apparatus for modifying an address code in a receiver to match an address code of an associated transmitter is disclosed. Upon activation, the receiver is placed in a modification mode. The transmitter is then activated to transmit an address code to the receiver. The receiver, while in the modification mode, receives the transmitted address code and stores data corresponding to the transmitted code in memory. The receiver unit then exits the modification mode. Thereafter, upon activation of the transmitter unit, and upon reception of an address code matching that stored in the receiver memory the receiver generates a control signal to initiate a desired control function.
Description
FI~D OF THE INvENTION
14 This invention relates generally to personal emergency alarm systems and more specifically to a method and apparatus 16 for on-site matching of address codes for respective 17 transmitter and receiver pairs employed in a personal emergency 18 alarm system.
, , ~ , . . . .
,, .' ' : ,. ~. .~ . ~ .
.~.
'~00~032 ~ACKGROUND OF THE INVENTION
l United States Patent No. 4,069,368 of the same assignee 2 discloses a~emergency alarm system for monitDring the needs of 3 elderly or infirm persons confined to their residences. Such 4 systems employ a user signalling device or a Personal Help Button (PHB) typically carried on the person of a system 6 subscriber. The user signalling device includes a switch 7 which, when activated, initiates an RF transmission to a 8 receiving subscriber unit having an address code which matches 9 that of the user signalling device. The subscriber unit, upon detection of an RF transmission having an address code matching 11 the code of the subscriber unit, transmits an alarm signal to a 12 central monitoring station which makes a decision whether to 13 dispatch aid to the residence from which the alarm signal was 14 received. Emergency alarm systems of this type have proven to be an effective tool for monitoring the condition and 16 responding to needs of elderly or infirm persons confined to 17 their residences.
18 Emergency alarm systems as described above can be lg employed in apartment comple~es, nursing homes or other densely populated areas. Thus, it is necessary to have a unique 21 address code in order for a specific user signalling device to 22 interact with a specific subscriber unit to assure that a 23 message sent to a central monitoring station accurately .
.
' ; ' ' ~::
:
2~5032 1 reflects the identity of the person signalling for assistance.
2 To avoid misidentification, a signalling unit ordinarily 3 transmits an identification code to the subscriber unit which 4 receives the transmission including the identification code and compares this received code with its own identifying address 6 code. Only if the codes match will the subscriber unit 7 transmit a message to the central monitoring station.
8 Ordinarilly, the process of matching the codes in the 9 user signalling device and the respective subscriber unit is accomplished in manufacturing since each transmitter and 11 receiver must have the same address code. Such leads to time 12 consuming maintenance problems in which a malfunction requiring 13 repair or replacement of one unit might require modification of 14 the other unit in order to match the digital code.
Alternatively, when one unit is replaced, the other unit might 16 need to be replaced concurrently to assure matching of the 17 digital address codes.
SUMMARY OF TH~ INVENTION
18 A method and apparatus is here disclosed for modifying 19 the address code of a receiver to match the address code of a transmitter such as in a personal emergency alarm system. The 21 invention provides the ability to easily modify the address 22 code of a subscriber unit to match that of a user signalling .. . . ..
~ ' ~ ' '' : : ' 5~Z
l de~ice at the user~s site. Thus, the present invention 2 eliminates the need to manufacture a user signalling device and 3 a subscriber unit as a matching pair and provides for ease of 4 replacement of either the subscriber unit or the user signalling device when either unit malfunctions.
14 This invention relates generally to personal emergency alarm systems and more specifically to a method and apparatus 16 for on-site matching of address codes for respective 17 transmitter and receiver pairs employed in a personal emergency 18 alarm system.
, , ~ , . . . .
,, .' ' : ,. ~. .~ . ~ .
.~.
'~00~032 ~ACKGROUND OF THE INVENTION
l United States Patent No. 4,069,368 of the same assignee 2 discloses a~emergency alarm system for monitDring the needs of 3 elderly or infirm persons confined to their residences. Such 4 systems employ a user signalling device or a Personal Help Button (PHB) typically carried on the person of a system 6 subscriber. The user signalling device includes a switch 7 which, when activated, initiates an RF transmission to a 8 receiving subscriber unit having an address code which matches 9 that of the user signalling device. The subscriber unit, upon detection of an RF transmission having an address code matching 11 the code of the subscriber unit, transmits an alarm signal to a 12 central monitoring station which makes a decision whether to 13 dispatch aid to the residence from which the alarm signal was 14 received. Emergency alarm systems of this type have proven to be an effective tool for monitoring the condition and 16 responding to needs of elderly or infirm persons confined to 17 their residences.
18 Emergency alarm systems as described above can be lg employed in apartment comple~es, nursing homes or other densely populated areas. Thus, it is necessary to have a unique 21 address code in order for a specific user signalling device to 22 interact with a specific subscriber unit to assure that a 23 message sent to a central monitoring station accurately .
.
' ; ' ' ~::
:
2~5032 1 reflects the identity of the person signalling for assistance.
2 To avoid misidentification, a signalling unit ordinarily 3 transmits an identification code to the subscriber unit which 4 receives the transmission including the identification code and compares this received code with its own identifying address 6 code. Only if the codes match will the subscriber unit 7 transmit a message to the central monitoring station.
8 Ordinarilly, the process of matching the codes in the 9 user signalling device and the respective subscriber unit is accomplished in manufacturing since each transmitter and 11 receiver must have the same address code. Such leads to time 12 consuming maintenance problems in which a malfunction requiring 13 repair or replacement of one unit might require modification of 14 the other unit in order to match the digital code.
Alternatively, when one unit is replaced, the other unit might 16 need to be replaced concurrently to assure matching of the 17 digital address codes.
SUMMARY OF TH~ INVENTION
18 A method and apparatus is here disclosed for modifying 19 the address code of a receiver to match the address code of a transmitter such as in a personal emergency alarm system. The 21 invention provides the ability to easily modify the address 22 code of a subscriber unit to match that of a user signalling .. . . ..
~ ' ~ ' '' : : ' 5~Z
l de~ice at the user~s site. Thus, the present invention 2 eliminates the need to manufacture a user signalling device and 3 a subscriber unit as a matching pair and provides for ease of 4 replacement of either the subscriber unit or the user signalling device when either unit malfunctions.
6 In accordance with the present invention, the subscriber 7 unit is first set into a mode which permits modification of the 8 subscriber unit address code. Setting the subscriber unit into 9 this mode is accomplished by activating a switch or multiple switches on the subscriber unit. After setting the subscriber ll unit into this modification mode, the user signalling device is 12 activated so as to transmit the address of that user signalling 13 device to the subscriber unit. The subscriber unit, while in 14 the modification mode, receives the address code transmitted by the user signalling devi~e and sets the addr~ss code of the 16 subscriber unit to match that transmitted by the user 17 signalling device. The subscriber unit may modify its address 18 directly on receipt of a new address or may modify its address l9 o~ly upon the repetitive receipt of a new address to assure that the address received correctly reflects the address 21 transmitted. After a predetermined period of time, the 22 subscriber unit exits the modification mode and reverts back to 23 a normal operational mode in which the subscriber station 24 transmits an alarm signal to 3 central monitoring station upon :: - -, . .~ , . : :
;: :
l activation of a user signalling device and receipt by the 2 subscriber unit of a signal including a matching address code.
~ESCRIPTION OF THE DRAWING~
3 Other features and advantages o~ the invention will be 4 apparent from the following description in conjunction with accompanying drawings of which:
6 Fig. l is a system diagram of a personal emergency alarm 7 system;
8 Fig. 2 is a block diagram of a user signalling device of 9 a type employed in the present invention;
Fig. 3 is a block diagram of a subscriber unit of a type 11 employed in the present invention;
12 Fig. 4 is a timing diagram showing e~emplary timing of 13 functions in accordance with the present invention; and 14 Fig. 5 shows a flow chart illustrating the method in accordance with the present invention.
PETAILED DESCRIPTION OF TH~ INVENTION
16 The present invention discloses a method and apparatus 17 for on-site matching of address codes for respective 18 transmitter and receivPr pairs disposed in a personal emergency 19 alarm system. The system provides a capability to modify the address stored in a subscriber unit to match the address code - :: : .. - ; . ................................ .
..
~05Q3~
1 transmitted by a particular user signalling de~ice. The 2 benefits of such a system, as applicable to a residential 3 emergency alarm system for monitoring the needs of elderly or 4 infirm persons are apparent in terms of overall system flexibility and ease of maintenance. Moreover, the benefits of 6 such a system e~tend to any system utilizing matching address 7 code transmitter-receiver pairs.
8 Referring to Fig. 1, the personal emergency alarm system 9 of the present invention includes a user signalling device or personal h~lp button 10 and a subseriber unit 12. The user 11 signalling device 10 is generally carried on the person of a 12 system subscriber while the subscriber unit 12 is located at a 13 convenient location within the system subscriber's residence.
14 The system also includes a central monitoring station 14 which is located at a location remote from the subscriber unit 12 and 16 which is typically adapted to receive data transmitted by 17 numerous subscriber units over a data link 16 such as a 18 telephone line data link.
19 The user signalling device 10 of the present invention is depicted in the block diagram of Fig. 2. This user 21 signalling device includes a transmitter 20 capable of 22 transmitting an address code identifying signal for wireless 23 transmission through an antenna 22. The user signalling device 24 also includes control logic 24 and address identification logic : : . ~ . - : . ~ , . , , : ., .. ~ ~. , , :
, :
20~5(~3;2 1 2~ which generates an address code to be transmitted on the RF
2 carrier signal. A signal including the address code which may 3 be in the form of a digital address code is transmitted upon 4 activation of the user signalling deqice 10 switch means.
The signal generated by the user signalling device 10 as 6 described above is transmitted to the subscriber unit 12 which 7 is depicted in greater detail in the block diagram of Fig. 3.
8 The subscriber unit 12 includes an antenna 30 to receive the RF
9 signal and a receiver/demodulator 32 which functions to separate the address code such as a serial digitally address 11 code from the received RF carrier signal. Tbe subscriber unit 12 further includes a microprocessor 34 which is operative to 13 process digital information received and to control the 14 functions of the subscriber unit 12. The microprocessor is also employed to control the function of the data link 16 interface 38 which ultimately transmits the alarm signal to the 17 central monitoring station 14.
18 A microprocessor may be included in the subscriber unit 19 12 which functions in conjunction with a memory 36. The memory 36 may comprise an electronically erasable programmable read 21 only memory (EEPROM). The memory 36 is employed to store the 22 address code o the corresponding transmitter unit such as a 23 user signalling device in a personal alarm system. In 24 accordance with the present invention the capability is : - : : . .
:
201~503~
1 provided to modify the address code stored in the memory 36.
2 Modification of the address code in the memory 36 occurs after 3 the subscriber unit is placed in a ~modification mode~. In 4 this mode new address data may be entered into the memory following receipt of the signal including an address code from 6 a user signalling device 10. The operation of this 7 modification mode will be understood by reference to the 8 flow-chart of Fig. 5 in conjunction with the purely 9 illustrative timing diagram of Fig. 4.
The subscriber unit 12 includes a switch or multiple 11 switches 28 which, when activated, generate a signal 50. The 12 signal 50 causes the subscriber unit 12 to enter the 13 modification mode for a predetermined period of time 14 (appro~imately 15 seconds in one embodiment), as illustrated by signal 52. The period during which modification may occur may 16 be determined via hardwired logic such as a monostable 17 multivibrator, via softwired logic including a timed loop under 18 software control, or via any other suitable timing period 19 generator known in the art. Thus, as shown in step 70, the subscriber unit is pl~ced in the modification mode in which new 21 data can be entered into the memory 36. After the subscriber 22 unit is placed in the modification mode the user signalling 23 device 10 is activated as illustrated by signal 54 and as shown 24 in step 72 so as to transmit the device address code to the ,, ,: . : . ~ :
.. , ,. , . ~ ~ ~ , ` Z~8503Z
1 subscriber unit 12. During the period illustrated by signal 2 54, the user signalling device transmits its address code for 3 reception by a subscriber unit 12. The address code may be 4 transmitted once by the user signalling device or repetitively. The subscriber unit 12 receives the address data 6 as illustrated by signal 58 and as shown in step 74.
7 In one embodiment of the invention, the address code 8 received by the subscriber unit is stored in the memory 36 upon 9 receipt. In another embodiment of the invention, the microprocessor compares the received address code data with the 11 address code previously present in the memory 36 as illustrated 12 by signal 60a and as shown in step 76. The result of this comparison leads to a logic decision, shown in step 78, as to 14 whether to erase the e~isting address code and to store the received address code or to leave the e~isting address code as 16 is based on whether the received address code is different from 17 the existing address code. If the received code is different 18 from the e~isting code, the received code is loaded into the 19 memory 36 as illustrated by signal 62a and as shown in step 80. This approach assures that an existing code will not be 21 erased unless a different address code replaces it.
22 In another embodiment of the invention, the 23 microprocessor verifies the va.lidity of an inputted address 24 code by perEorming a comparison on the data eceived over the '.
;~ _ 9 _ ~, . . . : . ~ , , ' ', :, ' ` ~' ' .
20~03Z
1 course of a signalling device 10 transmission cycle as 2 illustrated by signal 62b. During the course of the 3 transmission cycle 62b, the address code is repetitively 4 transmitted from the user signalling device 10 and received by the subscriber unit 12 as illustrated by step 82. By 6 performing repeated comparisons of the address data received 7 from the user signalling device 10, the subscriber unit 12 can 8 ~erify the validity of received address code prior to modifying 9 the memory 36. Thus, as shown in step 84, the address code is loaded into the memory 36 if the same address code has been 11 received a predetermined number of times during a given 12 transmission cycle and such code is different from the existing 13 code. This step provides assurance against the possibility of 14 an errant reception of an address code by the subscriber unit 12.
16 When a valid and verified code has been entered into 17 memory, a visual or audio indicator may be employed to indicate 18 to the subscriber that the address code has been received and 19 has been loaded into memory.
Following modification of the address code, as shown in 21 step 86, or e~piration of the modification mode time period, 22 the subscriber unit e~its the modification mode as shown by 23 signal 52.
.
,:
;: :
l activation of a user signalling device and receipt by the 2 subscriber unit of a signal including a matching address code.
~ESCRIPTION OF THE DRAWING~
3 Other features and advantages o~ the invention will be 4 apparent from the following description in conjunction with accompanying drawings of which:
6 Fig. l is a system diagram of a personal emergency alarm 7 system;
8 Fig. 2 is a block diagram of a user signalling device of 9 a type employed in the present invention;
Fig. 3 is a block diagram of a subscriber unit of a type 11 employed in the present invention;
12 Fig. 4 is a timing diagram showing e~emplary timing of 13 functions in accordance with the present invention; and 14 Fig. 5 shows a flow chart illustrating the method in accordance with the present invention.
PETAILED DESCRIPTION OF TH~ INVENTION
16 The present invention discloses a method and apparatus 17 for on-site matching of address codes for respective 18 transmitter and receivPr pairs disposed in a personal emergency 19 alarm system. The system provides a capability to modify the address stored in a subscriber unit to match the address code - :: : .. - ; . ................................ .
..
~05Q3~
1 transmitted by a particular user signalling de~ice. The 2 benefits of such a system, as applicable to a residential 3 emergency alarm system for monitoring the needs of elderly or 4 infirm persons are apparent in terms of overall system flexibility and ease of maintenance. Moreover, the benefits of 6 such a system e~tend to any system utilizing matching address 7 code transmitter-receiver pairs.
8 Referring to Fig. 1, the personal emergency alarm system 9 of the present invention includes a user signalling device or personal h~lp button 10 and a subseriber unit 12. The user 11 signalling device 10 is generally carried on the person of a 12 system subscriber while the subscriber unit 12 is located at a 13 convenient location within the system subscriber's residence.
14 The system also includes a central monitoring station 14 which is located at a location remote from the subscriber unit 12 and 16 which is typically adapted to receive data transmitted by 17 numerous subscriber units over a data link 16 such as a 18 telephone line data link.
19 The user signalling device 10 of the present invention is depicted in the block diagram of Fig. 2. This user 21 signalling device includes a transmitter 20 capable of 22 transmitting an address code identifying signal for wireless 23 transmission through an antenna 22. The user signalling device 24 also includes control logic 24 and address identification logic : : . ~ . - : . ~ , . , , : ., .. ~ ~. , , :
, :
20~5(~3;2 1 2~ which generates an address code to be transmitted on the RF
2 carrier signal. A signal including the address code which may 3 be in the form of a digital address code is transmitted upon 4 activation of the user signalling deqice 10 switch means.
The signal generated by the user signalling device 10 as 6 described above is transmitted to the subscriber unit 12 which 7 is depicted in greater detail in the block diagram of Fig. 3.
8 The subscriber unit 12 includes an antenna 30 to receive the RF
9 signal and a receiver/demodulator 32 which functions to separate the address code such as a serial digitally address 11 code from the received RF carrier signal. Tbe subscriber unit 12 further includes a microprocessor 34 which is operative to 13 process digital information received and to control the 14 functions of the subscriber unit 12. The microprocessor is also employed to control the function of the data link 16 interface 38 which ultimately transmits the alarm signal to the 17 central monitoring station 14.
18 A microprocessor may be included in the subscriber unit 19 12 which functions in conjunction with a memory 36. The memory 36 may comprise an electronically erasable programmable read 21 only memory (EEPROM). The memory 36 is employed to store the 22 address code o the corresponding transmitter unit such as a 23 user signalling device in a personal alarm system. In 24 accordance with the present invention the capability is : - : : . .
:
201~503~
1 provided to modify the address code stored in the memory 36.
2 Modification of the address code in the memory 36 occurs after 3 the subscriber unit is placed in a ~modification mode~. In 4 this mode new address data may be entered into the memory following receipt of the signal including an address code from 6 a user signalling device 10. The operation of this 7 modification mode will be understood by reference to the 8 flow-chart of Fig. 5 in conjunction with the purely 9 illustrative timing diagram of Fig. 4.
The subscriber unit 12 includes a switch or multiple 11 switches 28 which, when activated, generate a signal 50. The 12 signal 50 causes the subscriber unit 12 to enter the 13 modification mode for a predetermined period of time 14 (appro~imately 15 seconds in one embodiment), as illustrated by signal 52. The period during which modification may occur may 16 be determined via hardwired logic such as a monostable 17 multivibrator, via softwired logic including a timed loop under 18 software control, or via any other suitable timing period 19 generator known in the art. Thus, as shown in step 70, the subscriber unit is pl~ced in the modification mode in which new 21 data can be entered into the memory 36. After the subscriber 22 unit is placed in the modification mode the user signalling 23 device 10 is activated as illustrated by signal 54 and as shown 24 in step 72 so as to transmit the device address code to the ,, ,: . : . ~ :
.. , ,. , . ~ ~ ~ , ` Z~8503Z
1 subscriber unit 12. During the period illustrated by signal 2 54, the user signalling device transmits its address code for 3 reception by a subscriber unit 12. The address code may be 4 transmitted once by the user signalling device or repetitively. The subscriber unit 12 receives the address data 6 as illustrated by signal 58 and as shown in step 74.
7 In one embodiment of the invention, the address code 8 received by the subscriber unit is stored in the memory 36 upon 9 receipt. In another embodiment of the invention, the microprocessor compares the received address code data with the 11 address code previously present in the memory 36 as illustrated 12 by signal 60a and as shown in step 76. The result of this comparison leads to a logic decision, shown in step 78, as to 14 whether to erase the e~isting address code and to store the received address code or to leave the e~isting address code as 16 is based on whether the received address code is different from 17 the existing address code. If the received code is different 18 from the e~isting code, the received code is loaded into the 19 memory 36 as illustrated by signal 62a and as shown in step 80. This approach assures that an existing code will not be 21 erased unless a different address code replaces it.
22 In another embodiment of the invention, the 23 microprocessor verifies the va.lidity of an inputted address 24 code by perEorming a comparison on the data eceived over the '.
;~ _ 9 _ ~, . . . : . ~ , , ' ', :, ' ` ~' ' .
20~03Z
1 course of a signalling device 10 transmission cycle as 2 illustrated by signal 62b. During the course of the 3 transmission cycle 62b, the address code is repetitively 4 transmitted from the user signalling device 10 and received by the subscriber unit 12 as illustrated by step 82. By 6 performing repeated comparisons of the address data received 7 from the user signalling device 10, the subscriber unit 12 can 8 ~erify the validity of received address code prior to modifying 9 the memory 36. Thus, as shown in step 84, the address code is loaded into the memory 36 if the same address code has been 11 received a predetermined number of times during a given 12 transmission cycle and such code is different from the existing 13 code. This step provides assurance against the possibility of 14 an errant reception of an address code by the subscriber unit 12.
16 When a valid and verified code has been entered into 17 memory, a visual or audio indicator may be employed to indicate 18 to the subscriber that the address code has been received and 19 has been loaded into memory.
Following modification of the address code, as shown in 21 step 86, or e~piration of the modification mode time period, 22 the subscriber unit e~its the modification mode as shown by 23 signal 52.
.
,:
,' ~ ' ', , ' ' '.
~o~ti(~32 ; 1 The above-described invention is illustrative of a novel 2 method and apparatus for modifying an address code in a 3 receiving apparatus to match an address code in an associated 4 transmitting apparatus. Other modifications, embodiments, and S departures from the present disclosure are possible without 6 departing from the inventive concept contained herein.
7 Consequently, the invention is to be viewed as embracing each 8 and every novel feature and novel combination of features 9 present in or possessed by the technique and apparatus herein disclosed, and is limited 50lely by the scope and spirit of the 11 appended claims.
-:
- , ., - . . .:
.- . . , . ~ .
~o~ti(~32 ; 1 The above-described invention is illustrative of a novel 2 method and apparatus for modifying an address code in a 3 receiving apparatus to match an address code in an associated 4 transmitting apparatus. Other modifications, embodiments, and S departures from the present disclosure are possible without 6 departing from the inventive concept contained herein.
7 Consequently, the invention is to be viewed as embracing each 8 and every novel feature and novel combination of features 9 present in or possessed by the technique and apparatus herein disclosed, and is limited 50lely by the scope and spirit of the 11 appended claims.
-:
- , ., - . . .:
.- . . , . ~ .
Claims (16)
1. Receiving apparatus including means for modyifying a stored address code to match an address code transmitted by a transmitting apparatus comprising:
at least one switch means;
means responsive to activation of said at least one switch means for setting said receiving apparatus in a storage means modification mode;
means for receiving an address code corresponding to said transmitted address code from said transmitting apparatus while said receiving apparatus is in said storage means modification mode;
storage means associated with said receiving apparatus;
means for loading said storage means with data corresponding to said received address code while said receiving apparatus is in said storage means modification mode.
at least one switch means;
means responsive to activation of said at least one switch means for setting said receiving apparatus in a storage means modification mode;
means for receiving an address code corresponding to said transmitted address code from said transmitting apparatus while said receiving apparatus is in said storage means modification mode;
storage means associated with said receiving apparatus;
means for loading said storage means with data corresponding to said received address code while said receiving apparatus is in said storage means modification mode.
2. The receiving means of claim 1 wherein said storage means includes a semiconductor memory.
3. The receiving apparatus of claim 1 wherein said storage means includes an electrically erasable programmable read only memory.
4. The receiving apparatus of claim 1 wherein said means for setting said receiving apparatus in a storage means modification mode includes means for setting said receiving apparatus in a storage means modification for a predetermined period of time.
5. The receiving apparatus of claim 1 wherein said receiving address code is a digital address code having a predetermined number of bits.
6. A subscriber station of the type employed in a personal alarm system and which is capable of receiving address code information transmitted by a user signalling device upon activation of said device by a user, the improvement in said station comprising:
switch means;
storage means associated with said subscriber station for storing data corresponding to said received address code information;
means responsive to activation of said switch means for setting said subscriber station in a storage means modification mode;
means for receiving address code information transmitted by said user signalling device while said subscriber station is in said storage means modification mode;
means for storing data corresponding to said received address code information in said storage means.
switch means;
storage means associated with said subscriber station for storing data corresponding to said received address code information;
means responsive to activation of said switch means for setting said subscriber station in a storage means modification mode;
means for receiving address code information transmitted by said user signalling device while said subscriber station is in said storage means modification mode;
means for storing data corresponding to said received address code information in said storage means.
7. The subscriber station of claim 6 wherein said storage means includes a semiconductor memory.
8. The subscriber station of claim 6 wherein said storage means includes an electrically erasable programmable read only memory.
9. The subscriber station of claim 6 wherein said means for storing data includes a microprocessor.
10. A system for modifying an address code stored in a receiving apparatus to match an address code transmitted by a transmitting apparatus, comprising:
means associated with said transmitting apparatus for transmitting a signal including an identification code;
switch means associated with said receiving apparatus;
address code storage means associated with said receiving apparatus;
means operative to activation of said switch means for placing said receiving apparatus in an address code storage means modification mode;
means for receiving said address code transmitted by said transmitting apparatus upon activation of said transmitting apparatus during said storage means modification mode;
means for storge in data corresponding to said received address code in said address code storage means;
means for exiting said address code modification mode.
means associated with said transmitting apparatus for transmitting a signal including an identification code;
switch means associated with said receiving apparatus;
address code storage means associated with said receiving apparatus;
means operative to activation of said switch means for placing said receiving apparatus in an address code storage means modification mode;
means for receiving said address code transmitted by said transmitting apparatus upon activation of said transmitting apparatus during said storage means modification mode;
means for storge in data corresponding to said received address code in said address code storage means;
means for exiting said address code modification mode.
11. The system of claim 10 wherein said transmitting apparatus includes means for transmitting said address code repetitively.
12. The system of claim 11 wherein said means for storing data corresponding to said received address code in said address code storage means includes means for storing data corresponding to said received address code upon receipt of the same address code a predetermined number of times.
13. The system of claim 10 wherein said address code storage means is a semiconductor memory.
14. The system of claim 10 wherein said address code storage means includes an electrically erasable programmable read only memory.
15. A method for matching address codes in a system employing transmitter and receiver pairs comprising the steps of:
placing said receiver in a storage means modification mode;
activating said transmitter to transmit to said receiver a signal including the address code of said transmitter while said receiver is in said storage means modification mode;
receiving in said receiver, said signal including said transmitter address code;
storing in a memory associated with said receiver data corresponding to said transmitter address code;
exiting said storage means modification mode.
placing said receiver in a storage means modification mode;
activating said transmitter to transmit to said receiver a signal including the address code of said transmitter while said receiver is in said storage means modification mode;
receiving in said receiver, said signal including said transmitter address code;
storing in a memory associated with said receiver data corresponding to said transmitter address code;
exiting said storage means modification mode.
16. The method of claim 15 further including after said exiting step the step of:
generating a signal for initiating a desired action upon receipt by said receiver of a transmitted signal including a n address code corresponding to said data in said memory.
generating a signal for initiating a desired action upon receipt by said receiver of a transmitted signal including a n address code corresponding to said data in said memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2005032 CA2005032A1 (en) | 1989-12-08 | 1989-12-08 | Address code modification in a transmitter receiver pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2005032 CA2005032A1 (en) | 1989-12-08 | 1989-12-08 | Address code modification in a transmitter receiver pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2005032A1 true CA2005032A1 (en) | 1991-06-08 |
Family
ID=4143758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2005032 Abandoned CA2005032A1 (en) | 1989-12-08 | 1989-12-08 | Address code modification in a transmitter receiver pair |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2005032A1 (en) |
-
1989
- 1989-12-08 CA CA 2005032 patent/CA2005032A1/en not_active Abandoned
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4737770A (en) | Security system with programmable sensor and user data input transmitters | |
| CA1306501C (en) | Monitoring system for radio communication apparatus | |
| US4511887A (en) | Long range wireless alarm monitoring system | |
| KR950004713B1 (en) | User activated memory programming authorization in a selective call receiver | |
| EP0827616B1 (en) | Initialisation of a wireless security system | |
| EP1055211B1 (en) | Adaptive console for augmenting wireless capability in security systems | |
| US6999562B2 (en) | Security control and communication system and method | |
| US5189395A (en) | Electronic house arrest system having officer safety reporting feature | |
| EP0474701B1 (en) | Remote confinement system | |
| US4951029A (en) | Micro-programmable security system | |
| US6150936A (en) | Method and system for analyzing received signal strength | |
| US4367458A (en) | Supervised wireless security system | |
| US5483223A (en) | Personal security system with end-to-end test | |
| JP3877514B2 (en) | Entrance / exit monitoring system | |
| US4754262A (en) | Multiplexed alarm system | |
| US4928099A (en) | Telemetry system for automated remote calling and central dispatch of services, particularly taxicabs | |
| EP0107390A1 (en) | Supervised wireless security system | |
| US5155469A (en) | Wireless alarm system | |
| MXPA94004105A (en) | Duplex bi-directional multi-mode remote instrument reading and telemetry system. | |
| US4908602A (en) | Apparatus and method of testing a portable held button for emergency response system | |
| EP0231291A4 (en) | Electronic surveillance system and transceiver unit therefor. | |
| WO1987000665A1 (en) | Security and alarm system | |
| US4222052A (en) | Data transmission system | |
| US3952285A (en) | Security polling transponder system | |
| CA2005032A1 (en) | Address code modification in a transmitter receiver pair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |