Abstract: Methods and apparatus for detecting a transmission of digital radio frequency chirps are disclosed. A series of digital chirps, which are emitted from a remote transmitter, are received by an antenna and then fed into an RF receiver. In one preferred embodiment of the invention, noise is extracted from the received RF chirp waveform using a Kalman filter. Useful information is then extracted from the received RF chirp waveform using one of several novel detection methods.

Abstract: Methods and apparatus for providing remote diagnosis and treatment are disclosed. One embodiment of the invention comprises a cellular telephone (16A) that includes a camera (34), a display (40), a speaker (36A), a microphone (36B) and embedded diagnostic and treatment software (18). An alternative embodiment may also include one or more data devices (88) that may be connected to the cellular phone (16A) using a wireless (30A) or wired (30B) connection.

Abstract: Methods and apparatus for digital communications are disclosed. In one embodiment of the invention, chirp waveforms (10) are used to convey meanings of “one” and “zero.

Abstract: The present invention comprises methods and apparatus for providing more content choices to consumers (14) independent of their geography. In one embodiment of the invention, a consumer (14) uses a content terminal (18) to enjoy and audio and/or video content based on a customized set of content preferences (36). The present invention retrieves this preferred content utilizing a wired or wireless Internet connection (20), irrespective of the location of the user (14). In one embodiment of the invention, the content terminal (18) is a personal computer, cell phone, portable television or some other appropriate content replication appliance.

Abstract: The present invention comprises methods and apparatus for providing more content choices to a user (14) independent of their geography. In one embodiment of the invention, a user (14) utilizes a content terminal (18) to enjoy and audio and/or video content based on a customized set of content preferences (34). The present invention retrieves digital files utilizing a wired or wireless Internet connection over a network (20), irrespective of the location of the user (14). In one embodiment of the invention, the content terminal (18) is a personal computer, cell phone, portable television or some other appropriate content replication appliance. Users (14) may search for and obtain content selections (36) by accessing a website which displays a library of content in the form of an easy-to-use graphical interface.

Abstract: Methods and apparatus for digital communications are disclosed. In one embodiment of the invention, chirp waveforms (10) are used to convey meanings of “one” and “zero.” The present invention includes a wireless network for conveying chirp waveforms (10).

Abstract: The present invention comprises a central network transceiver (10) which both transmits and receives wireless radio signals. The central network transceiver (10) emits a broadcast or “point-to-multipoint” signal (12) which is received by many users or customers (14) which are located remotely from the central network transceiver (10). Customers (14) view video content using a personal computer, a modified television that includes a video camera (18), or some other video terminal or appliance (16).

Abstract: An Interactive Digital Data Broadcasting System comprises a plurality of digital data broadcasting transmitter systems (12) is disclosed. In a preferred embodiment, the transmitter (12) operate in the frequency bands 2,310-2,320 and 2,345-2,360 MHz (S-band), 902-928 MHz, 2,400-2,483.5 MHz or 5,725-5,825 MHz. The present invention also includes user terminal (14) capable of receiving a plurality of channels in the said frequency bands and capable of transmitting in one or more traditional wireless communications bands; a plurality of receiving systems (16) for transmission from a user terminal (14); and a network management center (18). A user terminal (14) comprises an antenna system (20) capable of receiving multiple channels of broadband data broadcast transmissions in said frequency bands 2,310-2,320 and 2,345-2,360 MHz, 902-928 MHz, 2,400-2,483.

Abstract: The present invention includes a chirp transmission means for generating and emanating chirps. In general, a chirp is a pulse, waveform or propagated signal which may be characterized by a mathematical function. In one embodiment, the mathematical function comprises a relationship between frequency and time. The invention also includes a chirp reception means for receiving chirps without the need for tuning to a carrier waveform. The reception means is capable of extracting digital data from the received chirps. In alternative embodiments of the invention, the chirps may convey voice, video or other signals.