1
Jack H Chang, Raymond L Tong: Apparatus and method for providing multimedia messaging between disparate messaging platforms. Carmel Connection, D Alessandro & Ritchie, October 26, 1999: US05974449 (186 worldwide citation)

The invention is an apparatus and method for receiving a message having a first format and for converting the message from the first format to a second format that is compatible for reception by a messaging interface having a destination address corresponding to an intended recipient. In the preferr ...


2
Jack H Chang, Raymond L Tong: System and method for providing communication on a wide area network. Carmel Connection, D Alessandro & Ritchie, September 12, 2000: US06118864 (72 worldwide citation)

In a first aspect of the present invention, at least one communication platform is networked to a switched backbone, such as the network commonly referred to as the Internet, and is configured to communicate with and manage at least one network interface, such as a private branch exchange (PBX), and ...


3
Jack H Chang: Apparatus and method for PBX-integrated unified messaging services on a switched backbone. Purplecomm, Thelen Reid Brown Raysman & Steiner, May 6, 2008: US07369648 (44 worldwide citation)

PBX-integrated unified messaging capabilities are provided via a switched backbone (such as the Internet) without having to install or deploy on-premise unified messaging equipment. A Corporate Communication Platform (“CCP”) typically located within a corporate subscriber's premises is integrated wi ...


4
Jack H Chang, William H Sheu, Sherman Tuan: Subscription and channel management technology. PurpleComm, Fish & Richardson P C, February 5, 2013: US08370874 (16 worldwide citation)

Subscription and channel management technology, in which a system allows a user to subscribe to a subset of the available channels on a content delivery network and personalize at least one channel. The system identifies a user identity of the user and stores, in a user database, channel subscriptio ...


5
Jack H Chang, William H Sheu, Sherman Tuan: Content delivery technology. PurpleComm, Fish & Richardson P C, February 11, 2014: US08650283 (11 worldwide citation)

Content delivery technology, in which a request to download a content file to a downloader device is received from a remote device and the downloader device associated with the received request is identified. Address information for the content file associated with the received request is determined ...


6
Jack H Chang, William H Sheu, Sherman Tuan: Storage management technology. PurpleComm, Fish & Richardson P C, September 9, 2014: US08831409 (10 worldwide citation)

Storage management technology, in which a system determines a first amount of storage space on a downloader device of a user that is available for download of new content made available on channels subscribed to by the user. The system also determines a second amount of storage space needed to downl ...


7
Jack H Chang, Raymond L Tong: System and method for managing multimedia messaging platforms. Calumet Keweenaw, Michael J Donohue, Davis Wright Tremaine, February 13, 2007: US07177908 (6 worldwide citation)

The present invention manages a messaging network having messaging platforms interconnecting through a switched backbone such as the Internet. The master platform monitors each messaging platform on the messaging network and administers the addition, deletion, and updating of messaging platforms by ...


8
Jack H Chang, William H Sheu, Sherman Tuan: Method for monitoring and controlling viewing preferences of a user. PurpleComm, Fish & Richardson P C, March 11, 2014: US08671423 (6 worldwide citation)

Media system control and advertisement technology, in which input related to advertising preferences of a user of a media system that is connected to a content delivery network is received. An advertisement control policy is defined for the user of the media system based on the received input. Durin ...


9
Jack H Chang, William H Sheu, Sherman Tuan: Content sorting and channel definition technology. PurpleComm, Fish & Richardson P C, October 28, 2014: US08875172 (5 worldwide citation)

Content sorting and definition technology, in which input defining multiple content links to include in a channel is received from a content curator and supplemental channel information that facilitates user experience of content linked to by at least one of the multiple content links is determined. ...


10
Jack H Chang, William H Sheu, Sherman Tuan: Meta channel network-based content download technology. PurpleComm, Fish & Richardson P C, December 3, 2013: US08601512 (3 worldwide citation)

Content download technology, in which a network-based video scheduled to be played at a particular time is identified, and multiple sources from which the network-based video is available for downloading are identified. An initial source from which to download the network-based video is selected fro ...