Abstract:
Antenna arrays can be fabricated as patches on conductive transparent material over an appropriate transparent dielectric substrate with the appropriate transparent ground-plane. To keep the fabrication cost low, such antenna arrays have a planar design without cross-over of the feeding lines or 3D interconnects. To steer the antenna horizontally, patches need to be fed with incremental phase shifts relative to their left or right neighbors; such feeds require an appropriate network and RF switches, typically located in an adjacent non-transparent area such as a PCB. Fabricating and disposing transparent phase delay component on the transparent material reduces the size of the PCB, thereby increasing visible transparent area.
Abstract:
A system for connecting telephony equipment to computer network equipment includes a telephony interface module adapted to accept at least one telephony connection from a telephony network. A computer network interface module is adapted to accept at least one data connection from a computer network. A signal processing module is adapted to alter data to be transferred between the computer network interface module and the telephony interface module. A bypass mechanism is adapted to transfer data between the telephony interface module, the computer network interface module, and the signal processing module while bypassing a host processor connected to the telephony interface module, the computer network interface module, and the signal processing module.
Abstract:
A system for enhancing tonal quality for ringback signals in a telecommunications network by adjusting audio processing during an alerting interval of a telecommunications session (e.g. during a telephone call). The system may be embodied in a telecommunications switching device and include a ringback manager process that provides the ability to adjust audio processing (e.g., by signaling to in-path equipment) which enhances the tonal quality of the ringback signal. As an example, a telephone system (e.g. equipment associated with establishment and operation of telephone communications sessions) can disable or attenuate operation of voice quality enhancement processing such as echo cancellation, noise reduction, adaptive level control, and the like, during the ringback or alerting interval or period of a telephone call so that the ringback tone provided to the calling party is not distorted by such processing.
Abstract:
Apparatus and method for calibrating an adaptive ranging A/D converter wherein a noise having known statistical properties is deliberately superposed on the reference DC signals used to calibrate the gain-ranging amplifier. The amplitude of the noise is chosen to be greater than at least one, and preferably several, least significant digits of the A/D converter at the lowest anticipated gain, yet preferably less than half the counting range of the converter at the highest gain. The reference DC signal levels are chosen to be spaced from the minimum and maximum count of the A/D at the lowest and highest anticipated gains by better than half the noise amplitude. A time average of a series of measurements of the noisy reference signals as amplified and digitized by the system are obtained. The statistical properties of the noise generator permits the system output corresponding to the reference signals to be determined to a greater accuracy than the resolution of the A/D, thereby allowing the gain and offset of the gain-ranging amplifier to be determined with greater precision than is possible by injecting noiseless DC signals alone.
Abstract:
A system for enhancing tonal quality for ringback signals in a telecommunications network by adjusting audio processing during an alerting interval of a telecommunications session (e.g. during a telephone call). The system may be embodied in a telecommunications switching device and include a ringback manager process that provides the ability to adjust audio processing (e.g., by signaling to in-path equipment) which enhances the tonal quality of the ringback signal. As an example, a telephone system (e.g. equipment associated with establishment and operation of telephone communications sessions) can disable or attenuate operation of voice quality enhancement processing such as echo cancellation, noise reduction, adaptive level control, and the like, during the ringback or alerting interval or period of a telephone call so that the ringback tone provided to the calling party is not distorted by such processing.
Abstract:
An urban environment having many subscribers in close proximity is interconnected by a line of sight wireless network such that individual subscribers connect to an ISP backbone or hub directly or indirectly through other subscribers in the wireless network. A set of subscribers therefore form a multi-node mesh network of line-of-sight adjacency. In an urban environment, line-of-sight adjacency between buildings is facilitated by window placement of transparent directional antennas. High density, high capacity, networks are formed using the transparent directional antennas where transparency facilitates window mounting and directionality reduces received interference and increases capacity. Each subscriber employs a configuration for communication “upstream” towards the ISP and “downstream” to other subscriber nodes. Each subscriber node includes one or more radios for communication upstream and downstream, a router, and a transparent directional antenna for communication with adjacent nodes.
Abstract:
A system for enhancing tonal quality for ringback signals in a telecommunications network by adjusting audio processing during an alerting interval of a telecommunications session (e.g. during a telephone call). The system may be embodied in a telecommunications switching device and include a ringback manager process that provides the ability to adjust audio processing (e.g., by signaling to in-path equipment) which enhances the tonal quality of the ringback signal. As an example, a telephone system (e.g. equipment associated with establishment and operation of telephone communications sessions) can disable or attenuate operation of voice quality enhancement processing such as echo cancellation, noise reduction, adaptive level control, and the like, during the ringback or alerting interval or period of a telephone call so that the ringback tone provided to the calling party is not distorted by such processing.
Abstract:
An alternate access mechanism provides reduced cost Internet access using a streamlined sign-on procedure. The alternate access mechanism employs a specialized access medium including an array of nodes interconnected back to a trunk line access point. The trunk line access point allows greatly reduced cost because of competitive access to the Internet backbone. The interconnected nodes include readily available components, such as wireless routers, microwave radios, and routers, and/or integrated versions thereof which leverage close proximity to adjacent nodes for establishing a path back to the trunk line access point. Subscriber access is facilitated by a “one click” or “minimal click” sign on sequence by startup logic encoded in the components and through a web service for identifying the nearest adjacent node, establishing communication with the adjacent node via an access token such as an SSID, automatically reconfiguring the subscriber's newly connected node and reestablishing a traffic connection, all following user assent to the sign-on conditions.
Abstract:
Wireless network demands continually increase as wireless service providers pursue additional service capabilities. In a cellular communication system, leased lines between remote cell sites and the corresponding Mobile Switching Offices (MSOs) remain a major operating cost. Bandwidth reduction by identification and elimination of payload data and control information which need not be fully replicated because it can be deduced from information accessible or previously transmitted allows fewer lines to support the same bandwidth. A wireless access gateway is operable to aggregate such redundant and regenerable data on a backhaul link between a wireless cell site and the corresponding mobile switching office (MSO) to provide low-latency, type specific lossless bandwidth reduction. The wireless access gateway identifies regenerable information and eliminates portions of the data which the device need not transmit because the data is redundant, or accessible or recreatable, at the receiving side. In this manner, the access device allows fewer lines to carry the reduced message traffic by transmitting only the non-recreatable data and eliminating message traffic for regenerable information.
Abstract:
Wireless network demands continually increase as wireless service providers pursue additional service capabilities. In a cellular communication system, leased lines between remote cell sites and the corresponding Mobile Switching Offices (MSOs) remain a major operating cost. Bandwidth reduction by identification and elimination of payload data and control information which need not be fully replicated because it can be deduced from information accessible or previously transmitted allows fewer lines to support the same bandwidth. A wireless access gateway is operable to aggregate such redundant and regenerable data on a backhaul link between a wireless cell site and the corresponding mobile switching office (MSO) to provide low-latency, type specific lossless bandwidth reduction. The wireless access gateway identifies regenerable information and eliminates portions of the data which the device need not transmit because the data is redundant, or accessible or recreatable, at the receiving side. In this manner, the access device allows fewer lines to carry the reduced message traffic by transmitting only the non-recreatable data and eliminating message traffic for regenerable information.