Password controlled switching system
First Claim
1. A switching system terminating lines and trunks comprisingmeans for interconnecting the lines and trunks,means for enrolling and storing passwords identifying ones of the lines and trunks having access restricted thereto by other ones of the lines and trunks, andmeans selectively connectable to calling ones of the lines and trunks for recognizing voice commands spoken by calling parties coupled therewith and operable upon a match of said spoken voice commands with ones of said enrolled and stored passwords for controlling said interconnecting means to selectively interconnect said calling lines with ones of said restricted access telephone lines and trunks.
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Accused Products
Abstract
A password controlled switching system and 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.
95 Citations
22 Claims
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1. A switching system terminating lines and trunks comprising
means for interconnecting the lines and trunks, means for enrolling and storing passwords identifying ones of the lines and trunks having access restricted thereto by other ones of the lines and trunks, and means selectively connectable to calling ones of the lines and trunks for recognizing voice commands spoken by calling parties coupled therewith and operable upon a match of said spoken voice commands with ones of said enrolled and stored passwords for controlling said interconnecting means to selectively interconnect said calling lines with ones of said restricted access telephone lines and trunks.
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12. A switching system terminating lines and trunks and having a network control for selectively interconnecting the lines and the lines with the trunks comprising
means for registering authorization codes identifying parties authorized access to restricted ones of the lines and trunks, means for enrolling and storing a spoken password generated by one of the parties identified by a registered authorization code and coupled with a calling one of the lines as a password pattern identifying ones of the restricted lines and trunks, and means for recognizing voice commands generated by the calling party and forming test patterns therefrom and operable upon a match of said formed test pattern with said password pattern for controlling said network control to selectively interconnect the calling line with one of said restricted lines and trunks.
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15. A switching system terminating lines and trunks and having a network control for selectively interconnecting the lines and the lines with the trunks comprising
means for registering authorization codes in a programmed processor identifying parties authorized access to restricted ones of the lines and trunks, means for prompting a calling party coupled with an off-hook one of lines to enter a spoken authorization code assigned the calling party and upon receiving a valid authorization code in response thereto prompting the calling party to enter a voice password, means for generating patterns in response to said voice password and enrolling said generated password patterns in the programmed processor, means for notifying the calling party of a successful completion of said password enrollment, means for notifying the calling party of a failure of said password enrollment, means for forming test patterns from spoken voice commands generated by calling parties subsequent to enrolling a password in response to said password prompt, means for matching said formed test patterns with said enrolled password patterns and calculating a confidence recognition value indicating a match of said formed test patterns with said stored password patterns and assigning said confidence recognition values to said formed test patterns, means for comparing said test pattern confidence recognition values and identifying those test patterns assigned confidence recognition values exceeding a predetermine threshold value as valid passwords, and means for encoding switch messages in response to identifying ones of said test patterns as a valid password to control the network control to enable a calling party access to 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.
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16. A method of controlling a switching system terminating lines and trunks and arranged to interconnect the lines and the lines with the trunks comprising the steps of
enrolling and storing passwords identifying ones of the lines and trunks having access restricted thereto, recognizing voice commands spoken by a calling party coupled with one of the lines and trunks and matching said spoken voice commands with said stored passwords, and controlling said switching system upon matching said spoken voice commands with ones of said stored passwords to selectively interconnect said one calling party line and trunk with one of said restricted access lines and trunks identified by said matched stored password.
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20. A method of controlling a switching system terminating lines and trunks and having a network control arranged to selectively interconnect the lines and the lines with the trunks comprising the steps of
registering authorization codes and passwords identifying parties authorized access to restricted ones of the lines and trunks, prompting calling parties to enter a spoken authorization code assigned thereto and upon receiving a valid authorization code prompting the calling party over a calling party line to enter a spoken password, enrolling in response to receiving a valid spoken authorization code the password identifying ones of the restricted lines and trunks and storing said password, matching spoken voice commands with said stored passwords and calculating a confidence recognition value indicating a match of said spoken voice commands with said stored passwords and assigning said confidence recognition factor to said spoken voice commands, and encoding switch messages in response to identifying ones of the spoken commands having an assigned confidence recognition value exceeding a predetermined threshold value as a valid password and transmitting said encoded switch messages to the network control to enable interconnection of the calling party line with one of the restricted lines and trunks identified by the spoken password.
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21. A method of controlling a switching system terminating lines and trunks and having a network control arranged to selectively interconnect the lines and the lines with the trunks comprising the steps of
registering authorization codes in a programmed processor identifying parties authorized access to restricted ones of the lines and trunks, prompting a calling party coupled with an off hook line to enter a spoken authorization code assigned the calling party and upon receiving a valid authorization code in response thereto prompting the calling party to enter a password, generating a pattern in response to said password and enrolling said generated pattern as a password in the programmed processor, notifying the calling party of a successful completion of said password enrollment, notifying the calling party of a failure of said password enrollment, forming test patterns from spoken voice commands generated by calling parties subsequent to enrolling a password in response to said password prompt, matching said formed test patterns with said enrolled password patterns and calculating a confidence recognition value indicating a match of said formed test patterns with said stored password patterns and assigning said confidence recognition values to said formed test patterns, comparing said test pattern confidence recognition values with a predetermined threshold value and identifying those test patterns assigned confidence recognition values exceeding the predetermined threshold value as valid passwords, and encoding switch messages in response to identifying ones of said test patterns as a valid password 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 with one of said password identified restricted lines and trunks.
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22. Password apparatus for use with a switching system having a network control for selectively interconnecting lines and trunks terminated on the switching system comprising
interface means for terminating ones of the lines and trunks, means for registering authorization codes identifying parties authorized access to restricted ones of the lines and trunks, means for enrolling and storing a password generated by one of the parties coupled with a calling one of the lines and identified by a registered authorization code as a password pattern identifying ones of the restricted lines and trunks, and means for recognizing commands subsequently generated by the calling party by forming test patterns therefrom and operable upon a match of said formed test patterns with said password pattern for controlling said network control to selectively interconnect the calling line with one of said restricted lines and trunks identified by said enrolled password.
Specification