EP0370662A2
Expired / Lapsed
EP
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Password controlled switching system
Assignee: AT&T Inc
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Filing: 1989-11-10
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Granted: —
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Expires: 2009-11-10
Abstract
Abstract A password controlled switching system (1) having voice password apparatus (2) and a method of operation for enrolling and storing passwords identifying lines and trunks of the switching system denied access thereto by other lines and trunks and which is operable upon a match of a calling party command with an enrolled and stored password for selectively interconnecting the calling party via a line with ones of the restricted lines and trunks.
Inventors
- 👤 William Rohrman Belfield
- 👤 William James Erwin
- 👤 Thomas Joseph Geers, Jr.
- 👤 Roy Vincent Grubbe
- 👤 Stephen Wade Handy
- 👤 Robert James Perdue
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-10 02:12
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/04; H04Q3/08; H04Q3/42; H04Q3/54; H04Q3/545; H04Q3/54508; H04Q3/54533; H04M; H04M3/00; H04M3/38; H04M3/42
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
119 words
A password controlled switching system (1) terminating lines and trunks having a network control (12) for selectively interconnecting the lines and trunks CHARACTERIZED IN THAT said password controlled switching system comprises voice password apparatus (2) interconnected with the network control for enrolling and storing passwords identifying lines and trunks having access restricted thereto by other lines and trunks and which is selectively connectable to calling ones of the lines and trunks for recognizing voice commands spoken by calling parties and operable upon a match of said spoken voice commands with one of said enrolled and stored passwords for controlling said network control to selectively interconnect said calling lines and trunks with ones of said restricted access lines and trunks.
Claim 2
Dependent Claim
119 words
A password controlled switching system (1) terminating lines and trunks having a network control (12) for selectively interconnecting the lines and trunks CHARACTERIZED IN THAT said password controlled switching system comprises voice password apparatus (2) interconnected with the network control for enrolling and storing passwords identifying lines and trunks having access restricted thereto by other lines and trunks and which is selectively connectable to calling ones of the lines and trunks for recognizing voice commands spoken by calling parties and operable upon a match of said spoken voice commands with one of said enrolled and stored passwords for controlling said network control to selectively interconnect said calling lines and trunks with ones of said restricted access lines and trunks.
Claim 3
Dependent Claim
65 words
The password controlled switching system set forth in claim 1 CHARACTERIZED IN THAT said voice password apparatus comprises apparatus (22, 23, 201) for registering authorization codes identifying parties authorized access to the restricted lines and trunks and prompting a calling party to enter an authorization code and upon receiving a valid authorization code in response thereto prompting the calling party to enter a spoken password.
Claim 4
Dependent Claim
75 words
The password controlled switching system set forth in claim 2 CHARACTERIZED IN THAT said voice password apparatus comprises apparatus (22, 201, 8) for generating patterns in response to said spoken password and matching said generated patterns with a pattern of said enrolled and stored password and calculating a confidence recognition value indicating a match of each said generated pattern with said password pattern and assigning said calculated confidence recognition value to each said generated pattern.
Claim 5
Dependent Claim
46 words
The password controlled switching system set forth in claim 3 CHARACTERIZED IN THAT said voice password apparatus comprises apparatus (220, 81) for comparing said pattern confidence recognition values and identifying a pattern assigned a confidence recognition value exceeding a predetermined threshold value as a valid password.
Claim 6
Dependent Claim
78 words
The password controlled switching system set forth in claim 4 CHARACTERIZED IN THAT said voice password apparatus comprises apparatus (220, 222, 94) for encoding switch messages in response to identifying one of said patterns as a valid password to control the network control to enable the calling party access to said restricted lines and trunks identified by said calling party spoken password by interconnecting the calling party line with one of said password identified restricted lines and trunks.
Claim 7
Dependent Claim
54 words
The password controlled switching system set forth in claims 1 through 5 CHARACTERIZED IN THAT said voice password apparatus comprises apparatus (220, 221, 235, 93, 96) for notifying the calling party of a successful completion of a password enrollment and for notifying the calling party of a failure of an enrollment of the password.
Claim 8
Independent Claim
116 words
A method of controlling a password switching system (1) terminating lines and trunks and having a network control (12) for selectively interconnecting the lines and trunks CHARACTERIZED IN THAT said password switching system controlling method comprises the step of enrolling (7, 8, 9) calling party spoken passwords identifying ones of the lines and trunks having restricted access and recognizing voice commands spoken by a calling party coupled with one of the lines and trunks and controlling the network control upon matching said spoken voice commands with one of said enrolled passwords for selectively interconnecting said one calling party line and trunk with one of said restricted access lines and trunks identified by said matched enrolled password.
Claim 9
Independent Claim
116 words
A method of controlling a password switching system (1) terminating lines and trunks and having a network control (12) for selectively interconnecting the lines and trunks CHARACTERIZED IN THAT said password switching system controlling method comprises the step of enrolling (7, 8, 9) calling party spoken passwords identifying ones of the lines and trunks having restricted access and recognizing voice commands spoken by a calling party coupled with one of the lines and trunks and controlling the network control upon matching said spoken voice commands with one of said enrolled passwords for selectively interconnecting said one calling party line and trunk with one of said restricted access lines and trunks identified by said matched enrolled password.
Claim 10
Dependent Claim
83 words
The method of controlling a password controlled switching system as set forth in claim 7 CHARACTERIZED IN THAT said enrolling and controlling step comprises the step of registering (7, 8) authorization codes identifying parties authorized access to said restricted access lines and trunks in voice password apparatus (2) connected with the network control and prompting the calling party to enter a spoken authorization code assigned the calling party and upon receiving a valid authorization code prompting the calling party to enter a password.
Claim 11
Dependent Claim
85 words
The method of controlling a password controlled switching system as set forth in claim 8 CHARACTERIZED IN THAT said enrolling and controlling step comprises the step of forming patterns (8) from spoken passwords generated by calling parties in response to said password prompt and matching said formed patterns with a pattern of said enrolled password and calculating a confidence recognition value indicating a match of said formed patterns with said stored password pattern and assigning said calculated confidence recognition values to said formed test patterns.
Claim 12
Dependent Claim
122 words
The method of controlling a password controlled switching system as set forth in claim 9 CHARACTERIZED IN THAT said enrolling and controlling step comprises the steps of comparing (81) said formed pattern confidence recognition values and identifying a pattern assigned a confidence recognition value exceeding a predetermined threshold value as a valid password, and encoding (9) switch messages in response to identifying one of said patterns as a valid password and transmitting said encoded switch messages to the network control to control the switching system to enable a calling party access to restricted lines and trunks identified by said calling party spoken password by interconnecting the calling party line and trunk with said one of said password identified restricted lines and trunks.
References Cited (Backward Citations)
No citation records indexed.
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