Gursharan K Sidhu, 509576 Gardella Way, Sacramento, CA 95829

5734901, Mar 31, 1998

Sep 26, 1995

8/534121

Gursharan S. Sidhu - Menlo Park CA
Stephen Fisher - Menlo Park CA
Patrick A. Holleran - Santa Cruz CA
Michael Andrew Cleron - Menlo Park CA

Apple Computer, Inc. - Cupertino CA

G06F 1300

395680

A computer implemented method and apparatus for providing the functions of electronic mail in a computer system which is integrated within a display or a window under control of a first application program which does not support electronic mail functionality. A set if mail routines displays a mailer on a first portion of the application program's display with application program data displayed in a second portion of the application program's display. The mail routines allow the user to modify the data in the application program via functionality of the application program and modify the mailer via the functionality of the mail routines. The mail routines further allow the user to perform electronic mail functions provided by the mail routines, wherein the electronic mail functions include using the application program data as content of mail messages processed by the mail routines. The functionality of the mail routines can be provided via an event preprocessor inserted into an event processing loop in the application program, wherein the event preprocessor determines whether events are pertinent to the mail routines. If so, the preprocessor processes the events to provide the electronic mail functionality and allows events which are pertinent to the application program to be processed by the application program.

5388213, Feb 7, 1995

Oct 29, 1993

8/146448

Alan B. Oppenheimer - Cupertino CA
Sean J. Findley - Gilroy CA
Gursharan S. Sidhu - Menlo Park CA

Apple Computer, Inc. - Cupertino CA

H04L 1246

395200

A method and apparatus for determining whether an alias (or entity name) is available for use in a communication system. A transmitting node or entity transmits a first signal including the alias over the communication system. The alias includes a zone name. If the transmitting node receives a reply signal to the first signal, then the alias is not available for use. Otherwise the alias is available for use. The transmitting node transmits the first signal to a first router connected to a first local network of the communication system. The first router forwards a second signal including the entity name from the first signal to other routers in the network until a second router connected to nodes having the zone name in the entity name is located. Each second router translates the second signal into a third signal which includes the alias, and using a first zone multicast address, multicasts the third signal to a first set of nodes. Each node of the first set of nodes determines whether the zone name contained within the alias is equal to a zone identifier for each node of the first set of nodes.

5497422, Mar 5, 1996

Sep 30, 1993

8/129941

Atticus N. Tysen - San Francisco CA
Gursharan Sidhu - Menlo Park CA
C. Victor Chang - Fremont CA
Pablo Calamera - San Jose CA

Apple Computer, Inc. - Cupertino CA

H04L 900

380 25

A digitally signed message, protected with a chain of certificates from the sender's immediate certifier up through an ultimate certifier, is transmitted to a recipient together with the entire certificate chain. The entire certificate chain is stored in a single signer file accessible by the sender. Drag-and-drop gestures of a graphical user interface are used by the sender to sign and certify the message, and an icon is provided on the recipient's display to initiate verification.

4689786, Aug 25, 1987

Mar 21, 1985

6/715066

Gursharan S. Sidhu - Menlo Park CA
Alan B. Oppenheimer - Cupertino CA
Lawrence A. Kenyon - Sunnyvale CA
Ronald R. Hochsprung - Saratoga CA

Apple Computer, Inc. - Cupertino CA

H04J 324

370 94

A local area network is disclosed including apparatus and methods for transferring data between a plurality of data processing resources ("agents") coupled to a cable. In the preferred embodiment, a plurality of agents are coupled to a common cable for data transmission and reception. An agent newly coupled to the cable dynamically assigns itself a unique address on the cable to which other agents may send data. Once an agent has been assigned a final address, it may then transmit to, and receive data from, other agents on the cable. An agent desiring to send data to a receiving agent follows a three step handshake, wherein the sending agent transmits an "RTS" signal and within a predetermined time must receive a "CTS" signal from the receiving agent. The sending agent then transmits a data frame within a predetermined time after the CTS signal is received. The failure to detect a return CTS signal within the predetermined time denotes a collision condition.

5884322, Mar 16, 1999

Jul 26, 1996

8/687677

Gursharan S. Sidhu - Menlo Park CA
Shantanu Narayan - Sunnyvale CA
Mark A. Gealy - Palo Alto CA
Richard F. Andrews - Menlo Park CA
Susan A. Manning - Boulder Creek CA

Apple Computer, Inc. - Cupertino CA

G06F 1730

707200

Unique identifications are assigned to entities in a network and items in a database. In general, unique identifications are assigned to entities or data items within a network by a plurality of server entities, each server entity capable of obtaining a unique subset of identifications from other server entities, assigning an identification from its subset to another server entity, subdividing its own subset to form other unique subsets and assigning a unique subset to another server entity. Each server entity receives its own server entity identification when it is installed and also may request to receive a unique subset of entity identifications. A subset of entity identifications, also referred to interchangeably herein as a "block" of entity identifications, comprises one or more entity identifications. Each server entity controls the assignment of the entity identifications within the subsets it receives. When items such as records or attributes within records are created in a server's database, the server entity generates a unique sequence identification which it combines with its entity identification to create a unique item identification.

4661902, Apr 28, 1987

Mar 21, 1985

6/715065

Ronald R. Hochsprung - Saratoga CA
Lawrence A. Kenyon - Sunnyvale CA
Alan B. Oppenheimer - Cupertino CA
Gursharan S. Sidhu - Menlo Park CA

Apple Computer, Inc. - Cupertino CA

G06F 1516

364200

A local area network is disclosed including apparatus and methods for transferring data between a plurality of data processing resources ("agents") coupled to a cable. In the preferred embodiment, a plurality of agents are coupled to a common cable for data transmission and reception. An agent newly coupled to the cable dynamically assigns itself a unique address on the cable to which other agents may send data. Once an agent has been assigned a final address, it may then transmit to, and receive data from, other agents on the cable. An agent desiring to send data to a receiving agent follows a three step handshake, wherein the sending agent transmits an "RTS" signal and within a predetermined time must receive a "CTS"signal from the receiving agent. The sending agent then transmits a data frame within a predetermined time after the CTS signal is received. The failure to detect a return CTS signal within the predetermined time denotes a collision condition.

4945475, Jul 31, 1990

Nov 21, 1989

7/442408

Bill M. Bruffey - Cupertino CA
Gursharan S. Sidhu - Menlo Park CA
Patrick W. Dirks - Cupertino CA
Christopher R. McFall - Palo Alto CA

Apple Computer, Inc. - Cupertino CA

G06F 1540

364200

A hierarchical filing system provides a cataloging of data stored in various locations within a memory device. An upside-down tree type structure provides a downwardly expanding cataloging structure wherein directories provide for further branchings. A branching from a directory is terminated when a file is reached. Each directory is assigned a unique directory identifier value. Then, each file or directory is coupled with the directory identifier value of its parent to provide the interconnection necessary to form the cataloging structure. The complete cataloging structure is organized in the leaf nodes of a B-Tree structure and distributed in an ascending order of the key values to provide a systematic search for a given key. Each file is capable of storing a predetermined number of location description information when data is segmented into non-contiguous segments in memory. A file extents record is used to maintain record of the further segmentation.

5150464, Sep 22, 1992

Jun 6, 1990

7/534144

Gursharan S. Sidhu - Menlo Park CA
Alan B. Oppenheimer - Cupertino CA
James E. Mathis - San Carlos CA

Apple Computer, Inc. - Cupertino CA

G06F 1300

395200

Method used by a first entity, typically a computer system, on a communication system for assigning itself a unique address known as a network address, which comprises a network number and a node identification number. The entity determines a unique network address for itself within a local subset of entities known as a local area network (LAN). A signal is then transmitted to determine whether a router is connected to the LAN, and if so, to determine if the network number of the address is within a range allowed by the router. If the network number is not within a range allowed by the router, then another network number is selected from a range of numbers provided by the router and another node ID are selected. It is determined whether this value is being used by any other entities in the LAN, and if so, node ID's are selected until an unused network address is ascertained. If all node ID's for an address are checked, then another network number is selected from the range and node ID's are again selected to determine a unique address.