Skypilot Networks, Inc.

Trilliant Networks, Inc.

Qualcomm Incorporated

Google Inc.

Skypilot Network, Inc.

Mark Rich

Kirk Bradley

Thomas Hammel

Joseph T Merenda

Michael R Franceschini

Randy Frei

Paul Gordon

Robert H Sparr

Paul Kolodzy

William G Olsen

Arie Shor

Michael Green

Dieter Statezni

An antenna subsystem receives an analog desired signal, noise, and interference via a communication channel. The desired signal includes modulated encoded digital information. A local oscillator (LO) modulation subsystem generates a modulated LO. The LO modulation subsystem generates a modulated LO to maximize the symbol signal-to-noise ratio of the decoded digital information based on a plurality of: the desired signal, the interference and the noise expected in the communication channel, the characteristics of the converter, and the ability of the DSP to remove the Modulated LO from the converted signal. A mixer mixes the received signal and the modulated LO. A converter converts the mixed signal from analog to digital. A digital signal processor (DSP) removes the modulated LO and desired signal modulation, and decodes the desired signal encoded digital information.

Radio receiver with local oscillator modulation

A modular device includes a first printed circuit board and a wireless transceiver (e.g., a radio). Electrical connectors (e.g., pads) are located along multiple edges of the first printed circuit board. The electrical connectors are in locations that correspond to a land pattern on a second printed circuit board. Along one edge of the first printed circuit board, the electrical connectors also correspond to electrical connections in a socket. For certification testing, for example, the device can be plugged into a socket. For installation in a host device, the device can be soldered down to the second printed circuit board.

Module that can be used as a plug-in module and as a solder-down module

A wireless mesh communication protocol that dynamically assigns communication time-slots and frequencies to mesh nodes. A first node is established as a PC that sequentially polls other nodes. A second node responds at a predetermined time with information that includes database records, and then a third node responds similarly. The second node is then established as the PC and the first node is polled during dynamically allocated time-slots and on a frequency that depend on the second node's database records. The third node is then established as a PC and acts similarly. In both cases the first node responds by sending information and data records. The first node is then re-established as the PC. The first node then polls the second and third nodes at times and frequencies that depend on the first node's database records.

Communication protocol for a wireless mesh architecture

Antenna arrays providing high gain during wireless communications are highly desirable for many applications including, but not limited to, multiple-in multiple-out (MIMO) streams and video transmissions. Optimized antenna arrays should also ensure ease of manufacture, thereby enhancing commercial viability. Circular antenna arrays including horn antennas or Yagi antennas are described, each circular antenna array ensuring ease of manufacture.

Circular antenna array systems

Method and apparatus for providing a wireless mesh network and network node are described. More particularly, a network having network node neighborhoods is described. A node comprises a multi-sectored antenna and a transceiver controller. Nodes are configured for installation without antenna pointing and without pre-coordination with the network. Software architecture for the node is also described.

Wireless mesh network

Wireless mesh network node

Network channel access protocol is disclosed. More particularly, a distributed, locally determined, channel access protocol that adapts to load, avoids interference and controls access by a group of nodes to a set of shared channels is disclosed. Shared channel space is divided into a number of communication slots that are repeated at a predetermined interval. Permission to use a slot to communicate between any two nodes is dynamically adjusted by the channel access protocol, which locally: (i) estimates load to neighboring nodes; (ii) allocates or deallocates slot usage to adapt to load and avoid interference; and (iii) asserts and advertises slot usage within an interference area about itself.

Network channel access protocol&#x2014;slot scheduling

Network channel access protocol&#x2014;frame execution

Network channel access protocol-interference and load adaptive

Network channel access protocol - slot allocation

A planar antenna that facilitates directional communication to a mesh network. The antenna is housed in a relatively small, planar package that can easily be attached to a window pane to enable the antenna to communicate with a neighboring rooftop mounted node of the mesh network. The package contains an M by N element phased array, where M and N are integers greater than one. The array is driven by microwave signals supplied from a P-angle phase shifting circuit, where P is an integer greater than one. Thus, the antenna synthesizes a single main beam and the antenna's main beam can be electrically 'pointed' in one of P directions. In one embodiment of the invention, the array comprises 40 physical elements (8&#xd7;5 elements) and has three selectable directions (i.e., the phase shifters provide +90, 0 and &#x2212;90 degree shifts that move the beam left 45 degrees, center and right 45 degrees).

Planar antenna for a wireless mesh network

Growing community of inventors

Menlo Park, CA, United States of America

Mark Rich