Inventions
The admin is in the process of compiling an exhaustive list of the patents. This is only a partial list.
REPRESENTATIVE OF ANALOG SIGNAL PAIRS (US Pat. 3706855 - Filed Oct 2, 1970)
Based on this arrangement at a sam- As shown in digit generators 100 and 200 each digit pling rate of 8 khz. we will have one pulse amplitude 2s generator ...
ASYNCHRONOUS DATA TRANSMISSION OVER A PULSE CODE MODULATION CARRIER (US Pat. 3760371 - Filed Aug 14, 1972)
... Pitroda .... The data from the stations S1-S23 is sam- DESCRIPTION OF THE
DRAWINGS 60 Pled *** sa™PH. ...
CD CD CO
US Pat. 3870826 - Filed Dec 21, 1973 - Bell Telephone Laboratories ... 12/1972 Pitroda.... 179/15 BY CONTROL UTPUT 307 320 338 PAM 313 PORT ...
LOAD ADDRESS JUMP ADDRESS 302 SAM 316 301 11 Claims, 14 Drawing Figures 306 ...Conference call circuitry for TDM signal exchange
US Pat. 3983332 - Filed Jun 3, 1974 - International Business Machines Corporation 9/1972 10/1972 Lewis Pitroda et ai „, ^ .. , ^ . , . ,79/ISBC 179/18BC These patented ... holds its particular sample before the next sam. pie is received. ...Conferencing arrangement for use in a PCM system
US Pat. 4022991 - Filed Sep 18, 1975 - GTE Automatic Electric Laboratories Incorporated The content of the information lated channels in a typical PCM system for conference- memory at this address (which represents a PCM sam- ing. ... Conferencing arrangement for use in a PCM system
US Pat. 4031328 - Filed Sep 18, 1975 - GTE Automatic Electric Laboratories Incorporated However, the time Subsequently, during the channel 5 time slot, the sam- division signals ... A last speaker sam- goes on continuously during each channel. ...Electronic diary
US Pat. 3999050 - Filed Oct 10, 1975
For example, a message could be 25 to call SAM on 627-1709 at 8:30. In this case a message time 8:30, the corresponding message is entered through the ... Methods and apparatus for digitally signaling sounds and tones in a PCM ...
US Pat. 4205203 - Filed Aug 8, 1978 - Wescom Switching, Inc.
The schedules may in- multi-frequency sound waves, a limited number of sam- clude one which is continuously on and one which is ples may be repeatedly used ... Method and apparatus for testing analog-to-digital and digital-to-analog ...
US Pat. 4266292 - Filed Nov 20, 1978 - Wescom Switching, Inc.
3 shows 50 section, where the A/D section sequentially time sam- that when D/A section channels 3 and 4 are connected pies analog data presented on A/D ... PCM switching system for wide and narrow band signals
US Pat. 4257119 - Filed Dec 29, 1978 - Wescom Switching, Inc.
Those PAM sam- 20 control, where assignments, priorities and the like can pies are passed to Ihe associated line circuit 159 for easily be changed by simple ... Method and means for digital conferencing
US Pat. 4267593 - Filed Jun 15, 1979 - Wescom Switching, Inc.
... ing amplitudes of the original analog voice signals sam- intending to engage in ... approach being described in Pitroda et would control the conference. ... Device, system and methods of conducting paperless transactions
US Pat. 6925439 - Filed Mar 10, 1999 - C-Sam, Inc.
... Pitroda ... Sam ...PRESENT SPEAKER MEMORY LAST SPEAKER MEMORY
US Pat. 3699264 However each number (the highest pu,se amplitude modulated sam- one is prevented
from receiving his own waveform. Ob- ple) is selected as the speaker. ...
Related Links