Telephonic communications – Audio message storage – retrieval – or synthesis – Voice activation or recognition
Reexamination Certificate
1999-12-02
2003-05-20
Tsang, Fan (Department: 2645)
Telephonic communications
Audio message storage, retrieval, or synthesis
Voice activation or recognition
C379S088080, C379S088220, C704S200000
Reexamination Certificate
active
06567506
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates generally to voice messaging systems. More particularly, it relates to a voice messaging system such as a telephone answering device capable of identifying a portion of a voice message containing a spoken telephone number.
2. Background of Related Art
Voice messaging systems in general, and telephone answering devices (i.e., answering machines) in particular, are useful devices for the home or office. A conventional telephone answering device operates on a single telephone line and answers an incoming call to an unused (i.e., on-hook) or even busy telephone after a desired number of rings. The telephone answering device causes the telephone line to enter an off-hook condition, then plays an outgoing greeting message to the calling party. After the outgoing greeting message, the calling party may leave a voice message on the telephone answering device. At a later time, the voice message is replayed by the user, either local to the telephone answering device or via remote connection from another telephone.
Voice messaging in telephony has been greatly advanced in recent years by the inclusion of digital information associated with a voice message. In fact, answering or voice messaging machine designs have further benefited from the decreasing costs of non-volatile memory to the point at which digital answering machines and electronic voice mail systems are affordable and common. In these types of voice messaging systems, speech data is stored digitally, i.e., in non-volatile or volatile-with-refresh memory rather than on a magnetic tape as in older messaging machines.
FIG. 9
illustrates a conventional telephone answering device capable of answering and recording a voice message from an incoming call on a telephone line.
In particular, in
FIG. 9
, a telephone answering device
11
is connected to a telephone company central office
13
via a telephone line
15
. A telephone line interface (TLI)
17
in the telephone answering device
11
provides the conventional isolation, DC and AC impedance as required by telephone company standards. The telephone line interface
17
also provides a ring detect signal to a controller
19
. The controller
19
is typically a suitable microprocessor, microcontroller, or digital signal processor (DSP). The ring detect signal indicates to the controller
19
the ringing of an incoming telephone call on the telephone line
15
.
After a desired number of ring signals, the telephone answering device
11
causes the telephone line interface
17
to place the telephone line in an off-hook state, and instructs a voice recorder/playback module
21
to play a pre-recorded outgoing greeting message over the telephone line
15
to the calling party. Upon completion of the outgoing greeting message, the calling party may leave a voice message in voice message memory
23
under the control of the controller
19
.
A user of the telephone answering device
11
later retrieves the recorded voice message from the voice message memory, using the user control keys
25
or other buttons or controls for selecting various modes of operation, and then deletes the voice message if desired. The user control keys
25
include an alphanumeric twelve-key keypad
25
a
to allow the user to manually dial a telephone number and use the telephone answering device
11
as an otherwise conventional telephone (using a handset, not shown). The user control keys
25
further include voice message playback control buttons such as REW, FF, STOP, PLAY
25
d
, and REC.
In addition, voice messages may be deleted using a delete message button
25
c
or other appropriate control. When deleted, the entire voice message is effectively erased from the voice message memory
23
(e.g., by allowing new voice messages to overwrite all portions of the deleted voice message).
A voice message number display
200
indicates a sequential message number, e.g.,
1
,
2
,
3
. . . . The voice message number display is typically one or two digits in length.
FIG. 10
illustrates an exemplary voice message table
800
contained in one sector of the voice message memory
23
. The message table
800
contains various header information relating to an underlying voice message stored in the same or linked page of voice message memory
23
. Conventional header type information includes a time/date stamp
802
indicating the time and date when an underlying speech message was stored. TAG information
804
in the header contains user defined data. Typically, to maximize efficiency in the conventional digital answering machine
11
, the speech data is encoded. Thus, the header includes coder information
806
identifying the type of encoding used to encode the underlying voice message data, e.g., the particular coded data rate. The new/old information
808
entry in the header of the message table
800
relates to whether or not the underlying speech message has been reviewed at least once by the user of the digital answering machine
11
. The deleted
on-deleted information
810
in the header conventionally indicates whether or not the underlying voice message has been deleted by the user. The number of bytes in the last sector information
812
relates to the length of the voice message in the last sector in which the voice message is stored, avoiding replay of the unused end portion of a partially used last sector when replaying the relevant voice message. Link list information
814
in the header indicates the addresses of all sectors used to store the relevant voice message. Some systems include additional header information
816
in the message table
800
.
FIG. 11
shows an exemplary sector in the voice message memory
23
containing the underlying voice message
902
-
908
. The sector shown in
FIG. 10
is the first listed in the link list
814
of the message table
800
for the underlying voice message. Zero, one or more pages of speech data
902
-
908
may be listed in the link list
814
of a message table
800
for a single voice message.
Unfortunately, there is limited space in the voice message memory
23
to store voice messages on a conventional telephone answering device
11
. As indicated in
FIG. 12
, once the maximum recording time has been reached, the telephone answering device
11
will not be able to accept and record any additional voice messages. The user of the conventional telephone answering device will be required to delete or erase an entire message from the voice message memory
23
in order to receive and record additional voice messages.
Moreover, a user of a voice messaging system may occasionally receive a very long voice message. In such a case, the user may be interested in only a small portion of the very long voice message, e.g., the end portion containing a call-back telephone number. Oftentimes, a user needs to hear the general content of the voice message only once, but may not be prepared for writing down detailed information at the end, e.g., a telephone number, contact name, or an address. Using conventional telephone answering systems, the entire voice message must be retained until played back later when the user is prepared to transcribe the detailed information. Unfortunately, the retained lengthy voice message will occupy valuable memory in the limited voice message memory
23
.
Accordingly, there exists a need for a method and apparatus allowing more efficient use of voice memory to provide additional capacity to store additional voice messages.
SUMMARY OF THE INVENTION
In accordance with the principles of the present invention, a device for generating a voice clip of a full voice message comprises a spoken telephone number recognizer module to review a full voice message and identify a voice clip portion of the full voice message containing a spoken telephone number. A tagging module associates the voice clip portion with the full voice message for separate playback.
A method of generating a voice clip of a spoken telephone number from a voice message comprises identifying a voice
Agere Systems Inc.
Bollman William H.
Foster Roland G.
Tsang Fan
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