Patents Assigned to Oxford Semiconductor, Inc.
-
Patent number: 7409476Abstract: A USB controller is provided with multiple logic channels that share same physical address and data bus at an interface between the host system and the USB Host Controller; and dataports used by the host system to read and/or write data to the USB Host Controller. Also provided is a data packet format for transferring data, which comprises of an Endpoint Transfer Descriptor (“ETD”) that includes an EndPoint Descriptor and a Transfer Descriptor, wherein the host system programs the parameters of a communication channel for a particular Endpoint. Also included is a technique for partitioning a memory storage device into a first memory buffer and a second memory buffer; wherein the size of the first and second memory buffer may be programmed by the host system and the first and/or second memory buffer may contain more than one USB packet.Type: GrantFiled: February 24, 2006Date of Patent: August 5, 2008Assignee: Oxford Semiconductor, Inc.Inventors: Ping Liang, Zong Liang Wu, Jing Wang
-
Patent number: 7287257Abstract: A system and method for automatically detecting the attachment of a peripheral device to a host system, and configuring the host system for communication with the peripheral device is described. In accordance with an aspect of the invention, when a peripheral device is attached to the host system, the host detects the attachment of the device. If a device driver for controlling and communicating with the peripheral device is locally available, then the host system installs and loads the device driver. If the device driver is not locally present, then the host system establishes a connection with a server system that includes a database with the device driver needed for operation of the device. The device driver is forwarded to the host system and is then integrated into the host's system software, so that the host can communicate with and control the peripheral device.Type: GrantFiled: October 7, 2003Date of Patent: October 23, 2007Assignee: Oxford Semiconductor, Inc.Inventor: Joseph R. Meza
-
Patent number: 7277451Abstract: Wireless communication networks utilize various communication protocols to exchange data between wireless network devices. Overlapping communication frequencies between data exchange protocols present a collision and interference problem when data transmissions are transmitted using similar timing and frequency characteristics during wireless transit. A device and method for receiving and separating collision signals during transit in a wireless communication network where overlapping communication frequencies coexist is described to significantly reduce the loss of data and information caused by interference and colliding transmission signals.Type: GrantFiled: July 31, 2002Date of Patent: October 2, 2007Assignee: Oxford Semiconductor, Inc.Inventors: Minghua Chen, Ping Liang
-
Patent number: 7233602Abstract: A system and methods for coordinating transmissions in a wireless network wherein a plurality of frequency-overlapping protocols are used to exchange information between devices. In this system, a coordination point device integrates a monitoring functionality to identify impending data collisions between the frequency-overlapping protocols. The coordination point device further identifies quality of service parameters to determine if the protocols are operating within desirable ranges. Moderation one or more of the protocols is then performed to avoid data collisions arising from overlapping transmissions between the protocols while maintaining data throughput within acceptable ranges.Type: GrantFiled: October 23, 2001Date of Patent: June 19, 2007Assignee: Oxford Semiconductor, Inc.Inventors: Minghua Chen, Ping Liang
-
Patent number: 7215659Abstract: Wireless communication networks utilize various communication protocols to exchange data between wireless network devices. Overlapping communication frequencies between data exchange protocols present a collision problem when data transmissions interfere with one another during wireless transit. A device for moderating transmission traffic in a wireless network where overlapping communication frequencies coexist is described to reduce or avoid interference caused by signal collisions.Type: GrantFiled: July 31, 2002Date of Patent: May 8, 2007Assignee: Oxford Semiconductor, Inc.Inventors: Minghua Chen, Ping Liang
-
Patent number: 7177294Abstract: Wireless communication networks utilize various communication protocols to exchange data between wireless network devices. Overlapping communication frequencies between data exchange protocols present a collision problem when data transmissions interfere with one another during wireless transit. A device for moderating transmission traffic in a wireless network where overlapping communication frequencies coexist is described to reduce or avoid interference caused by signal collisions.Type: GrantFiled: October 25, 2001Date of Patent: February 13, 2007Assignee: Oxford Semiconductor, Inc.Inventors: Minghua Chen, Ping Liang
-
Patent number: 7167484Abstract: Wireless communication networks utilize various communication protocols to exchange data between wireless network devices. Overlapping communication frequencies between data exchange protocols present a collision problem when data transmissions interfere with one another during wireless transit. A device for moderating transmission traffic in a wireless network where overlapping communication frequencies coexist is described to reduce or avoid interference caused by signal collisions.Type: GrantFiled: February 1, 2002Date of Patent: January 23, 2007Assignee: Oxford Semiconductor, Inc.Inventors: Ping Liang, Menghua Chen