| 6848073 |
Trellis encoding technique for PCM modems |
Frederic J. Hirzel |
2005-01-25 |
| 6643270 |
Method of compensating for systemic impairments in a telecommunications network |
Frederic J. Hirzel |
2003-11-04 |
| 6633604 |
Method of improving echo canceller training in modems and of discovering characteristics of a PCM channel |
Frederic J. Hirzel |
2003-10-14 |
| 6327301 |
Detection and adaptation to digital network impairments by PCM modems |
Frederic J. Hirzel |
2001-12-04 |
| 6222890 |
Variable spectral shaping method for PCM modems |
Frederic J. Hirzel |
2001-04-24 |
| 6067034 |
Maximal bit packing method |
Frederic J. Hirzel, William M. Balisteri |
2000-05-23 |
| 5621815 |
Global threshold method and apparatus |
Dipankar Talukdar, Ramalingam Sridhar |
1997-04-15 |
| 5524070 |
Local adaptive contrast enhancement |
Yong Chul Shin, Ramalingam Sridhar, Sargur N. Srihari |
1996-06-04 |
| 5257220 |
Digital data memory unit and memory unit array |
Yong Chul Shin, Ramalingam Sridhar, Paul W. Palumbo, Sargur N. Srihari |
1993-10-26 |
| 5251151 |
Method and apparatus for diagnosing the state of a machine |
David M. Benenson, Soon Yeol PARK, Selwyn Wright, Andres Soom, Raj S. Acharya +1 more |
1993-10-05 |
| 4980844 |
Method and apparatus for diagnosing the state of a machine |
Andres Soom, Yong Ho. LEE, Andrei M. Reinhorn, Tsu-Teh Soong, David M. Benenson +3 more |
1990-12-25 |
| 4828599 |
Method for producing glass tubing of a narrowed diameter |
Frederick Sachs |
1989-05-09 |
| 4818266 |
Apparatus for producing glass tubing of a narrowed diameter |
Frederick Sachs |
1989-04-04 |
| 4803718 |
Hold detecting and control circuit for a key telephone system |
James E. Neil, Christopher R. Caile |
1989-02-07 |