Paul F Depond, 71Largo, FL

6208731, Mar 27, 2001

Oct 6, 1998

9/168331

Paul F. DePond - San Mateo CA
Gaylan Larson - San Jose CA
Greg Neal - San Jose CA
David Yewell - Los Altos Hills CA

H04M1/64;1/00

379376

A VMWI (Visual Message Waiting Indicator) multisense detection device solves both the problem of long CLASS VMWI signal retransmission delays and unreliable CLASS VMWI signal transmission by simultaneously enabling both stutter dial tone detection and CLASS VMWI signal detection. The multisense device samples the line each time the phone is placed on-hook or after the phone goes unanswered after a ring. If a valid CLASS VMWI signal is detected before the scheduled dial tone test, the dial tone test will be canceled. If no CLASS VMWI signal is detected, after a given amount of time, the VMWI device automatically enables stutter dial tone detection. The detection circuitry periodically polls for a preamble field of the CLASS signal to determine whether a valid CLASS signal is about to be transmitted. If the preamble indicates a CLASS signal is being transmitted, the detection circuitry remains on and the CLASS signal is received and processed. If no signal is detected during the time period for the preamble, the detection circuitry is shut off until the next polling period.

6317488, Nov 13, 2001

Nov 9, 1999

9/436912

Paul F. DePond - San Mateo CA
Gaylan Larson - San Jose CA

Notify Corporation - San Jose CA

H04M 164
H04M 156
H04M 342

379 9335

An Internet Call Waiting Device (ICW) detects a Call Waiting signal even when a modem is currently using the phone line. Upon sensing the Call Waiting signal, the internet Call Waiting device alerts the user using one or more flashing lights and/or generating audible signals that the user can hear. If the user has a Call Waiting-Caller ID service the caller's name and number are also displayed if it is available from the phone company. After being notified, the user can choose to ignore the call or take the call by picking up a telephone. If the user picks up the telephone, the ICW signals the central office to put the first modem connection on hold. A connection is then made with the second call. When the second call is completed and the user hangs up the telephone for the second call, the ICW signals the central office to reconnect the first modem call. The ICW includes a signal detector for detecting a Call Waiting or Call Waiting-Caller ID signal on the phone line.

5825852, Oct 20, 1998

Jul 24, 1996

8/685750

Paul F. DePond - San Mateo CA
Gaylan Larson - San Jose CA
Greg Neal - San Jose CA
David Yewell - Los Altos Hills CA

Notify Corporation - San Jose CA

H04M 164

379 67

A VMWI (Visual Message Waiting Indicator) multisense detection device solves both the problem of long CLASS VMWI signal retransmission delays and unreliable CLASS VMWI signal transmission by simultaneously enabling both stutter dial tone detection and CLASS VMWI signal detection. The multisense device samples the line each time the phone is placed on-hook or after the phone goes unanswered after a ring. If a valid CLASS VMWI signal is detected before the scheduled dial tone test, the dial tone test will be canceled. If no CLASS VMWI signal is detected, after a given amount of time, the VMWI device automatically enables stutter dial tone detection. The detection circuitry periodically polls for a preamble field of the CLASS signal to determine whether a valid CLASS signal is about to be transmitted. If the preamble indicates a CLASS signal is being transmitted, the detection circuitry remains on and the CLASS signal is received and processed. If no signal is detected during the time period for the preamble, the detection circuitry is shut off until the next polling period.