Abstract: An improved system and procedure for controlling the audio broadcast to users participating in a group conversation. In one embodiment, a communications server employs arbitration logic to decide which of the user has priority to speak, and accordingly mixes only the audio data steams for those users for broadcast to all users. The server can send notification to the user interfaces to inform the users of their current priority status and to allow the users to request that their priority be increased, decreased, eliminated, or passed on for the benefit of another user. A user may also attempt at his user interface to affect the priority of identified other users by informing the arbitration logic of a rating for that user. Additionally, a systems administrator may also arbitrate user priorities, either at his discretion or in conjunction with suggestions provided by the arbitration logic.

Abstract: An improved system and procedure for allowing participants within a group conversation on a wireless communication network to at least temporarily break away from a group conversation and hold a side bar conversation. The side bar conversation may comprise several different types, including a public conversation (much like the original group conversation) or may constitute a private conversation (much like a standard phone call) or private text messaging or data exchange. A group conversation user wishing to hold the side bar conversation uses his user interface to alert other group conversation user(s) with whom he would like to hold the side bar conversation. Either the initiating user or the recipient user(s) can recommend the type of side bar conversation to be had using their user interfaces.

Abstract: Disclosed herein are systems and methods for organizing communications in a vehicular wireless communication system. In one embodiment, methods and systems are disclosed for modifying communications broadcast within a vehicle. In one embodiment, the volume of the broadcast communications are scaled or modified in a manner to indicate the distance of the recipient of the communications. In another embodiment, broadcast communications are selectively broadcast through those speakers that are closest to the recipient of the communications in accordance with the angular orientation of the vehicle to the recipient. In another embodiment, the distance or angular orientation of the recipient is displayed on a user interface in the vehicle. In yet another embodiment, only the speakers are engaged in the vehicle that is nearest to the passenger that initiates the communication with the recipient.

Abstract: An improved system and procedure for organizing communications in a vehicular wireless communication system. In one embodiment, methods and systems are disclosed for operating a communication system in a first vehicle in which a microphone or microphones are selectively enabled to preferentially pick up the voice of only a particular participant in a vehicle. In other embodiments, user IDs are associated with the speaking participants, which allows a recipient receiving the voice communications to known who in the vehicle is speaking, and to block or modify such communications if necessary.

Abstract: An improved system and procedure for allowing a user to post a route to another mobile user or to himself. In one embodiment, a user engages his user interface to record and transmit the traveled route to a second user or to himself at a later time. The recipient receives the route in accordance with his user ID and other parameters specified or messages left by the initiating user. The route can be displayed on a map, in text, or audibly broadcast. In an alternative embodiment, the route can be left by a non-mobile user for the benefit of a mobile user using, for example, a home computer.

Abstract: A system and method for selectively enabling communications at a user interface using a user profile. The system and methods have particular utility to communication user interfaces in vehicles but may be used with other wireless user interfaces as well. In one embodiment, a user uses his user interface to define a user profile indicative of the types of communication channels he wishes to receive. This user profile is transmitted to a communications server and is used to filter all potential channels so that the user only has access to those channels potentially of interest. User preferences specified in the user profile may be, for example, topical, commercial, weather, traffic, or emergency in nature, and can be stored for future reference. The user may also prioritize preferred or received channels so that they are given precedence at his user interface.

Abstract: A system and method for enabling communications in a wireless communications network on the basis of user-specified locations or orientations, having particular utility to vehicle-based communications. Users of the network broadcast their locations and orientations (headings) to a central server. Using his user interface, a user can specify either a location or a heading and transmit the same to the server. The server will query other system users to determine which correspond to the specified locations or orientations, and the requesting user is then permitted to contact such other users. With such functionality, a given user can, for example, be enabled to communicate with other users at or near his current location, at or near some specified distant location, or that are traveling in the same direction as the user.

Abstract: A ceramic waveguide filter made from a monolithic block of dielectric ceramic material which has longitudinally spaced resonators is described. Resonant structures having a grounded portion and ungrounded portion, each of the resonant structures being inductively coupled at the ungrounded portion describe the electrical schematic which corresponds to the waveguide filter. The positioning of the input and output on the block of dielectric ceramic material define a passband and also create a shunt resonant section. The shunt resonant section is associated with a shunt zero in the electrical schematic of the waveguide filter. Finally, the dielectric block of ceramic is mostly coated with an electrically conductive coating material with the exception of an uncoated area immediately surrounding the input and output.

Abstract: A filter (102) with an adjustable shunt zero. The filter (102) has a predetermined passband and stopband, and an input (104) and an output (106), and a variable reactance element (108) for adjusting the stopband frequency of maximum attenuation, also defined as a shunt zero, coupled to at least one of the input (104) and the output (106) of the filter (102), whereby the shunt zero is adjustable over a range of frequencies.

Abstract: A filter (102) with an adjustable bandwidth. The filter (102) has a predetermined passband and stopband, and an input (104), an output (106) and at least two resonator structures (116, 124), and a variable reactance element (108) for adjusting the bandwidth of the passband, coupled between the resonator structures (116, 124), whereby the frequency response is adjustable.