Prysm, Inc.

Fortinet, Inc.

Donald Krall

Edward Lopez

Son Pham

Venkateswara Adusumilli

Neil Huynh

Roger A Hajjar

John Julian Uebbing

Alan Claude Burroughs

David L Kent

Phillip H Malyak

Mark A Pajdowski

Anand Budni

Dimitrios Katsis

Systems and methods for an SDN switch that provides application-based conditional forwarding and session-aware load balancing are provided. According to one embodiment, a packet is received at an input port of a Software Defined Networking (SDN) switch. The packet is forwarded by the SDN switch to a first flow processing unit (FPU) of multiple FPUs of the SDN switch. The first FPU determines whether the packet is to be tracked. And, if so, the received packet is transmitted to a second FPU of the SDN switch; otherwise, the packet is transmitted to a third FPU of the SDN switch. When the packet is received at the second FPU, the packet is conditionally forwarded by the SDN switch to an application device. When the packet is received at the third FPU, the packet is conditionally forwarded to an output port or dropped.

Application based conditional forwarding and load balancing in a software defined networking (SDN) architecture

Systems and methods for an SDN switch that provides service group chaining for sequentially serving multiple network security devices are provided. According to one embodiment, a packet received by the switch is processed by a first FPU based on a first set of rules and forwarded conditionally to a first security device. The packet is security processed, including dropping it or forwarding it to an egress port or forwarding it to a second FPU. When forwarded to the second FPU, the packet is processed based on a second set of rules by forwarding it to a second security device or dropping it or forwarding it to the egress port. When forwarded to the second security device, the packet is security processed, including dropping it or forwarding it to the egress port or conditionally forwarding it to a third FPU to be sequentially forwarded to a third security device.

Sequentially serving network security devices using a software defined networking (SDN) switch

Systems and methods for an SDN switch that facilitates forwarding/differential routing decision determination are provided. A packet is received at an input port of the SDN switch. The switch includes a first and second set of flow processing units (FPUs). The packet is forwarded to a first FPU of the first set. Based on a flow table associated with the first FPU, it is determined whether the packet is to be forwarded to a network device or an output port. The packet is received from the network device at a second FPU of the second set. Based on a flow table associated with the second FPU, it is determined whether to execute one or more instructions to forward the packet to the input or output port, or to drop or default forward the packet to the input or output port.

Packet routing using a software-defined networking (SDN) switch

The display of a portion of an image in successive rows of display tiles in a tiled display system are delayed, so that the top portion of a first display tile is illuminated immediately after the bottom portion of a second display tile is illuminated, where the second display tile is adjacent to and above the first display tile. This removes the appearance of a broken up image when the image moves across the display tiles in a direction somewhat parallel to the direction of raster scanning. In this way, a raster scanning tiled display system does not produce a stair-step effect even though the top and bottom portion of an image on a tile in the tiled display system is raster-scanned at different times.

Tile row pixel shift in a tiled display system

Scanning beam display systems using fluorescent screens and various servo feedback control mechanisms to control display imaging qualities.

Servo-assisted scanning beam display systems using fluorescent screens

Methods and systems for improving imaging quality and power efficiency of scanning beam display systems using fluorescent screens are disclosed. In various embodiments, beam shaping mechanisms for maximizing overlap between the beam cross-section and the florescent element corresponding to each color sub-pixel of the screen, as well as pulse width and timing adjustments, are introduced to reduce imaging noise and improve power efficiency of the display system.

Techniques and devices use panels or screens with pixels for display or illumination applications to achieve dithered pixel brightness beyond pixel brightness levels set by a digital to analog conversion (DAC) circuit module with a preset DAC resolution between two adjacent DAC levels. In one implementation, when a pixel is to be dictated by a digital pixel signal to operate within an unstable brightness region, a control mechanism is provided to control the DAC circuit module to operate the pixel in the block at a DAC level below the unstable brightness region or at a different DAC level above the respective unstable brightness region, to achieve a perceived brightness level within the respective unstable brightness region.

Growing community of inventors

San Jose, CA, United States of America

Donald Krall