Altera Canada Co.

Avalon Holographics Inc.

Avalon Microelectronics, Inc.

Other

Altera Corporation

Avalon Holographies Inc.

Altera Newfoundland Technology Corp.

Wally Haas

Chuck Rumbolt

Jordan Peckham

Mutema John Pittman

Matthew Hamilton

Daniel Webber

Jennifer Campbell-Correa

Stephen Hill

Michael Kenneth Anstey

Martin Langhammer

Shawn Nicholl

A multiplexed light field projector device and a multiplexed light field display to output a light field image is described. The projector has a projector base with a projection optical system configured to output light rays to form a projected image, a collimating optical system configured for collimation of the projected image light rays to form a second projected image, which is directed to a display optical system to produce a light field image. Light field projector devices or alternative projector devices may be used individually or in combination with one or more other projectors which can be arranged to form a multiplexed direct projection light field display. The arrangement of projector devices may have an individual or shared display optical system.

Multiplexing light field display

Direct projection multiplexed light field display

The present disclosure relates to a directional pixel for a high-angular resolution, wide field of view, multiple view display. The design teaches a directional pixel comprising a substrate, one or more pixel driving circuits, one or more nano- or micro-scale subpixels, and one or more directional optical guiding surfaces, wherein each of said one or more subpixels is comprised of a light emitting device emitting a light beam and an optical microcavity housing said light emitting device. The optical microcavity is comprised of a plurality of reflective surfaces to specifically manipulate and tune said light beam, wherein one or more of said reflective surfaces is a light propagating reflective surface which propagates said light beam out of said microcavity, and said light propagating reflective surface is connected to said one or more directional optical guiding surfaces to direct said light beam at a specific angle. A high-angular resolution, multiple-view light-field display is created by deploying a plurality of directional pixels into a directional pixel array system.

Directional pixel array for multiple view display

Directional pixel for multiple view display

A method of performing forward error correction with configurable latency, where a configurable latency algorithm evaluates a target Bit Error Rate (BER) against an actual BER and adjusts the size of a configurable buffer such that the target BER may be achieved when utilizing the smallest buffer size possible. When errors are corrected without the utilization of each of the configurable buffer locations, the algorithm reduces the size of the buffer by y buffer locations; the algorithm may continue to successively reduce the size of said buffer until the minimum number of buffer locations are utilized to achieve the target BER. If the buffer locations have been reduced such that the buffer size is too small and the target BER cannot be achieved, the algorithm may increase the size of the buffer until the minimum number of buffer locations are utilized to achieve the target BER.

Forward error correction with configurable latency

Systems, methods, and devices are provided for intermediate authentication of a message transmitted through a switched-path network, such as an optical transport network (OTN). In one method, a message transmitted through communication nodes of a switched-path network may be authenticated, at least partially, by authentication logic of one or more of the communication nodes. The one or more communication nodes may identify whether a prior communication node has tampered with or corrupted the message or may generate an authentication tag to enable an authentication authority to authenticate the message.

Systems and methods for intermediate message authentication in a switched-path network

The present invention discloses a method of detecting and correcting skew across a plurality of transmitting lanes. Through the use of an N framer system, including a frame start signal and a frame synchronization signal, skew can be detected and corrected by writing data from a plurality of framers into offsetting bit locations of a plurality of buffers. The present invention also provides a method of transmitting data in a multiple lane distribution (MLD) transmission system.

Method of multiple lane distribution (MLD) deskew

The present invention discloses an apparatus to implement a m=n Non-Blocking Minimal Spanning Switch, where n=the total number of data input signals and m=the total number of data output signals and m=the number of crossbar connections in each switch. Data is input to the switch as a plurality of frames, whereby each crossbar connection contains a framer which detects framing patterns in the data. Skewed data is re-aligned and buffered so that the data output by each crossbar connection is equal and identical, thus any crossbar connection may be used to ensure a connection, eliminating the possibility of data interrupts.

Strict-sense minimal spanning switch non-blocking architecture

The present invention discloses a method of accessing stored information in multi-framed data transmissions, comprising at least one control interface and at least one elastic store, wherein the control interface accesses the elastic store through a mailbox communications method. The control interface accesses the elastic store via the mailbox communications method, which comprises: (a) setting a address for a data location within said elastic store; (b) setting a request to read from, or write to, said data location within said elastic store; (c) issuing a 'GO' signal to retrieve data information from said data location within said elastic store, by writing said 'GO' signal to said microprocessor, which causes a circuit to read from said requested data location within said elastic store; (d) waiting for a possible, but not to be expected, de-assertion of a busy signal to be issued from said data location within said elastic store, and then; and then (e) reading back the value of said data information to said control interface. Where a busy signal occurs, the microprocessor must wait and issue a subsequent &#x201c;GO&#x201d; signal to retrieve the data information from the data location; where a busy signal does not occur the &#x201c;GO&#x201d; signal causes the circuit to read from the requested data location and send the data information hack to the microprocessor, where the data information is stored in a user-accessible register.

Method of accessing stored information in multi-framed data transmissions

An overhead processor for data transmission in digital communications is disclosed. Incoming data is transmitted along a datapath. If there are two or more groups of incoming data, arriving separately, the initial group(s) of received data can be held in an elastic store until the arrival of additional group(s) of data, and upon the arrival of additional group(s) of data, all received data are combined and transmitted into flip-flop(s). The data is transmitted from said flip-flop(s) to a logic element to determine the new data context of imminent incoming data prior to any additional incoming bytes arriving along the datapath. Therefore, the number of overhead processors required for multi-byte data transmission is reduced, potentially reducing the number of required overhead processors in digital communications to 1.

Growing community of inventors

Mount Pearl, Canada

Wally Haas