초록 ▼

The invention relates to a system and method for tracking clients as they visit the locations of various recipients. Clients are provided with access to telephones and identification devices which the client uses to communicate with a remote computer. Information is communicated as to the clients lo

The invention relates to a system and method for tracking clients as they visit the locations of various recipients. Clients are provided with access to telephones and identification devices which the client uses to communicate with a remote computer. Information is communicated as to the clients location, the time of the clients visit to that location, and other types of information, such as to a service provided at the location. Location information may be provided by automatic number identification, wireless phone location information, or a global position device. The computer uses information received during the communication to identify and authenticate the client making the communication and the location of the client at the time of the communication. Authentication is accomplished by obtaining unique biometric parameters from a client and comparing those to biometric parameters in a database. Biometric data can include a voice print sample, or a finger or retinal print electronically transmitted to the remote computer. Because each of these identifiers results from a physiological characteristic which is unique to the client, the system assures that the identified client is the client making the communication.

대표청구항 ▼

The invention relates to a system and method for tracking clients as they visit the locations of various recipients. Clients are provided with access to telephones and identification devices which the client uses to communicate with a remote computer. Information is communicated as to the clients lo

The invention relates to a system and method for tracking clients as they visit the locations of various recipients. Clients are provided with access to telephones and identification devices which the client uses to communicate with a remote computer. Information is communicated as to the clients location, the time of the clients visit to that location, and other types of information, such as to a service provided at the location. Location information may be provided by automatic number identification, wireless phone location information, or a global position device. The computer uses information received during the communication to identify and authenticate the client making the communication and the location of the client at the time of the communication. Authentication is accomplished by obtaining unique biometric parameters from a client and comparing those to biometric parameters in a database. Biometric data can include a voice print sample, or a finger or retinal print electronically transmitted to the remote computer. Because each of these identifiers results from a physiological characteristic which is unique to the client, the system assures that the identified client is the client making the communication. ser; and converting the current score to a standardized measure of accuracy obtained from the statistical database; wherein the step of maintaining a statistical database includes the following steps performed each time a user successfully accesses a protected system using a biometric device: obtaining current biometric data from this user; comparing the current biometric data of this user with stored biometric templates of other users enrolled to use the same biometric device, wherein the biometric data of this user are compared as "impostor data" with the other user templates, and a comparison score is obtained from the biometric device; after each comparing step, updating a count of impostor comparisons performed for each of the other users, and updating a count of the number of times the comparison score is obtained for impostor comparisons relative to each other user; updating the probability of occurrence of each comparison score; and computing an equivalent false acceptance rate from the probabilities of occurrence of the comparison scores, wherein the false acceptance rate provides an objective measure of security risk for this particular user and biometric device. 3. A method as defined in claim 2, wherein the step of converting the current biometric score to a standardized measure of accuracy includes retrieving from the statistical database a false acceptance rate corresponding to this user, the current biometric device and the current biometric score. 4. A method as defined in claim 1, wherein the step of maintaining a statistical database includes the following steps performed each time a user successfully accesses a protected system during a data gathering phase of operation and provides data to a biometric device: obtaining current biometric data from this user; comparing the current biometric data of this user with a stored biometric template of this user obtained during enrollment to use the same biometric device, and obtaining a comparison score from the biometric device; after each comparing step, updating a count of test comparisons performed for this user, and updating a count of the number of times the comparison score is obtained for this user; updating the probability of occurrence of each comparison score; and computing an equivalent false rejection rate from the probabilities of occurrence of the comparison scores, wherein the false rejection rate is computed as the sum of the probabilities of obtaining comparison scores lower than the one obtained in the step of obtaining the comparison score under consideration for this user, and provides an objective measure of convenience of use for this particular user and biometric device. 5. A method as defined in claim 4, wherein the step of converting the current biometric score to a standardized measure of accuracy includes retrieving from the statistical database a false rejection rate corresponding to this user, the current biometric device and the current biometric score. 6. A method as defined in claim 2, wherein the step of maintaining a statistical database further includes the following steps performed each time a user successfully accesses a protected system during a data gathering phase of operation and provides data to a biometric device: obtaining current biometric data from this user; comparing the current biometric data of this user with a stored biometric template of this user obtained during enrollment to use the same biometric device, and obtaining a comparison score from the biometric device; after each comparing step, updating a count of test comparisons performed for this user, and updating a count of the number of times the comparison score is obtained for this user; updating the probability of occurrence of each comparison score; and computing an equivalent false rejection rate from the probabilities of occurrence of the comparison scores, wherein the false rejection rate is computed as the sum of the probabili