1
David W Carr: Packet-based data compression method. Gandalf Technologies, Perman & Green, March 8, 1994: US05293379 (206 worldwide citation)

A data processing system is described that employs data packets which include at least static and dynamic fields, the static fields containing information that often remains constant during a multi-packet communication interval and the dynamic fields containing information that changes for each pack ...


2
Steven J Gutz, Charles M Storry, Craig P Twardy: Serial data rate detection method and apparatus. Gandalf Technologies, Perman & Green, December 10, 1991: US05072407 (22 worldwide citation)

A system and method are described for bit rate detection in a serial data communication system, the system employing a data rate prompt of a pair of opposite value data bits which follow a series of idle bits. In a first embodiment a receiving port employs a clocked delay element and a set of data c ...


3
Barbir Abdulkader Omar: Method and apparatus for performing simultaneous data compression and encryption. Gandalf Technologies, December 3, 1997: EP0810737-A2 (2 worldwide citation)

A method and apparatus for performing simultaneous data compression and encryption both compresses and encrypts data in a single step. The invention includes a novel modeling method for use in conjunction with a coder, such as an arithmetic coder. The modeling method introduces randomness into the c ...


4
Barbir Abbulkader Omar: Method and apparatus for performing data compression. Gandalf Technologies, September 3, 1997: EP0793349-A2

A method and apparatus are disclosed for performing data compression on raw uncompressed data. The method develops a semi-adaptive modeler that sub-divides the length of an input data file into blocks of fixed size. The blocks are then sub-divided into sub-blocks in which the frequencies of the symb ...


5
Barbir Abdulkader Omar: Methode et appareil servant a effectuer simultanement une compression et un chiffrement de donnees, Method and apparatus for performing simultaneous data compression and encryption. Gandalf Technologies, Zarlink Semiconductor, GOWLING LAFLEUR HENDERSON, August 28, 2001: CA2205127

Abstract A method and apparatus for performing simultaneous datacompression and encryption both compresses and encrypts datain a single step. The invention includes a novel modelingmethod for use in conjunction with a coder, such as anarithmetic coder. The modeling method introduces randomnessinto t ...


6
Barbir Abdulkader Omar: Methode et appareil de compression de donnees, Method and apparatus for performing data compression. Gandalf Technologies, Zarlink Semiconductor, GOWLING LAFLEUR HENDERSON, February 12, 2002: CA2191403

A method and apparatus are disclosed for performing data compression on raw uncompressed data. The method develops a semi-adaptive modeler that sub-divides the length of an input data file into blocks of fixed size. The blocks are then sub-divided into sub-blocks in which the frequencies of the symb ...


7
Gutz Steven J, Storry Charles M, Twardy Craig P: Systeme pour determiner le debit binaire de donnees serie, Serial data rate detection systems. Gandalf Technologies, SHAPIRO COHEN, March 5, 1996: CA2025848

A system and method are described for bit ratedetection in a serial data communication system, thesystem employing a data rate prompt of a pair ofopposite value data bits which follow a series of idlebits. In a first embodiment a receiving port employs aclocked delay element and a set of data clock ...