Patent EP0897164A2 successfully refreshed from Google Patents.
EP0897164A2
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EP
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Apparatus and methods for user identification to deny access or service to unauthorized users
Assignee: International Business Machines Corp
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Filing: 1998-07-23
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Granted: —
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Expires: 2018-07-23
Abstract
Abstract Apparatus for preventing unauthorized use of a voice dialing system and, particularly, a call forwarding feature associated with the system whereby system users may forward a telephone number respectively associated therewith to a remote location in order to receive phone calls at the remote location, comprises: a database for pre-storing telephone numbers of system users and for pre-storing acoustic models respectively representative of speech associated with each system user, the acoustic models respectively corresponding to the telephone numbers; and a speaker identification module operatively coupled to the database for obtaining and decoding a speech sample from a potential system user during the potential users' attempt to make a telephone call, the speaker identification module comparing the decoded speech sample obtained with the pre-stored acoustic model associated with the telephone number dialed by the potential user; whereby if the decoded speech sample substantially matches the pre-stored acoustic model, then the phone call attempted by the potential user is terminated. <IMAGE>
Inventors
- 👤 Vladimir Bergl
- 👤 Kenneth Davies
- 👤 Abraham Poovakunnel Ittycheriah
- 👤 Stephane Herman Maes
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 10:36
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/38; H04M3/382; G; G07; G07C; G07C9/00; G07C9/30; G07C9/32; G07C9/37; H04M3/42; H04M3/42204; H04M2201/00; H04M2201/40
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
172 words
Apparatus for identifying service users in order to prevent
unauthorized use of a plurality of services by service users, the
apparatus comprising: means for pre-storing one of a biometric attribute and a non-biometric
attribute of at least a representative portion of the service
users, the pre-storing means partitioning the pre-stored attributes into
groups according to a predetermined service participation schedule with
respect to the plurality of services; means for obtaining one of the biometric attribute and the non-biometric
attribute from a potential user during the potential users'
attempt to access the service; and means for comparing one of the obtained biometric attribute and the
obtained non-biometric attribute with one of the pre-stored biometric
attributes and the pre-stored non-biometric attributes within the groups; whereby if one of the obtained biometric attribute and the obtained
non-biometric attribute substantially matches one of a pre-stored
biometric attribute and a pre-stored non-biometric attribute within one
of the groups, then the apparatus denies the potential user access to the
Particular service associated with the group containing the match.
Claim 2
Dependent Claim
28 words
The apparatus of Claim 1, wherein the at least one biometric
attribute is speech and the obtaining means and comparing means include
portions of a speaker identification module.
Claim 3
Dependent Claim
27 words
The apparatus of Claim 2, wherein the speaker identification module
is text-independent whereby the at least one biometric attribute is
representative of a class of service users.
Claim 4
Dependent Claim
29 words
The apparatus of Claim 1, wherein the groups of attributes
partitioned by the pre-storing means are groups of users not authorized
to access the service associated with the group.
Claim 5
Dependent Claim
160 words
Apparatus for preventing unauthorized use of a voice dialing system
and, particularly, a call forwarding feature associated with the system
whereby system users may forward a telephone number respectively
associated therewith to a remote location in order to receive phone calls
at the remote location, the apparatus comprising: a database for pre-storing telephone numbers of system users and
for pre-storing acoustic models respectively representative of speech
associated with each system user, the acoustic models respectively
corresponding to the telephone numbers; and a speaker identification module operatively coupled to the database
for obtaining and decoding a speech sample from a potential system user
during the potential users' attempt to make a telephone call, the speaker
identification module comparing the decoded speech sample obtained with
the pre-stored acoustic model associated with the telephone number dialed
by the potential user; whereby if the decoded speech sample substantially matches the pre-stored
acoustic model, then the phone call attempted by the potential
user is terminated.
Claim 6
Dependent Claim
12 words
The apparatus of Claim 5, wherein the speaker identification module
is text-independent.
Claim 7
Independent Claim
168 words
A method of identifying service users in order to prevent
unauthorized use of a plurality of services by service users, the
apparatus comprising: (a) pre-storing one of a biometric attribute and a non-biometric
attribute of at least a representative portion of the service users; (b) partitioning the pre-stored attributes into groups according
to a predetermined service participation schedule with respect to the
plurality of services; (c) obtaining one of the biometric attribute and the non-biometric
attribute from a potential user during the potential users'
attempt to access the service; and (d) comparing one of the obtained biometric attribute and the
obtained non-biometric attribute with one of the pre-stored biometric
attributes and the pre-stored non-biometric attributes within the groups; whereby if one of the obtained biometric attribute and the obtained
non-biometric attribute substantially matches one of a pre-stored
biometric attribute and a pre-stored non-biometric attribute within one
of the groups, then the apparatus denies the potential user access to the
particular service associated with the group containing the match.
Claim 8
Dependent Claim
27 words
The method of Claim 7, wherein the at least one biometric attribute
is speech and the obtaining and comparing steps are performed by a
speaker identification module.
Claim 9
Dependent Claim
27 words
The apparatus of Claim 7, wherein the speaker identification module
is text-independent whereby the at least one biometric attribute is
representative of a class of service users.
Claim 10
Dependent Claim
29 words
The method of Claim 7, wherein the groups of attributes partitioned
in the partitioning step are groups of users not authorized to access the
service associated with the group.
References Cited (Backward Citations)
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