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A bidirectional direct sequence spread spectrum half-duplex RF modem which can be applied to transmit and receive numerous types of analog and digital pulse modulation. The modem incorporates two different SAW devices fabricated on a single monolithic substrate. A first SAW device is used as a reson

A bidirectional direct sequence spread spectrum half-duplex RF modem which can be applied to transmit and receive numerous types of analog and digital pulse modulation. The modem incorporates two different SAW devices fabricated on a single monolithic substrate. A first SAW device is used as a resonator in the oscillator circuit while a second SAW device is used as the correlator for transmit and receive operations. The RF modem operates as an analog or digital pulse transmitter and receiver and is adapted to be generic and versatile enough to be used in many different types of data communication systems, such as OOK, PWM and PPM. The RF modem can be used as the physical (PHY) layer in a layered communication system such as the ISO OSI communication stack. In an alternative embodiment, the transmission bit rate is increased using a plurality of correlators wherein each is configured with a unique function (i.e., code) that is orthogonal with all other functions.

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A bidirectional direct sequence spread spectrum half-duplex RF modem which can be applied to transmit and receive numerous types of analog and digital pulse modulation. The modem incorporates two different SAW devices fabricated on a single monolithic substrate. A first SAW device is used as a reson

A bidirectional direct sequence spread spectrum half-duplex RF modem which can be applied to transmit and receive numerous types of analog and digital pulse modulation. The modem incorporates two different SAW devices fabricated on a single monolithic substrate. A first SAW device is used as a resonator in the oscillator circuit while a second SAW device is used as the correlator for transmit and receive operations. The RF modem operates as an analog or digital pulse transmitter and receiver and is adapted to be generic and versatile enough to be used in many different types of data communication systems, such as OOK, PWM and PPM. The RF modem can be used as the physical (PHY) layer in a layered communication system such as the ISO OSI communication stack. In an alternative embodiment, the transmission bit rate is increased using a plurality of correlators wherein each is configured with a unique function (i.e., code) that is orthogonal with all other functions. (Aug. 1996). International Telecommunication Union (ITU). ITU-T, I.432.4. Series I: Integrated Services Digital Network, ISDN User-Network Interfaces--Layer 1 Recommendations, B-ISDN User-Network Interface--Physical Layer Specification: 51 840 kbit/s operation. (Aug. 1996). International Telecommunication Union (ITU). ITU-T, G.804. Digital Networks. ATM Cell Mapping into Plesiochronous Digital Hierarchy (PDH). (Nov. 1993). ssing information in the packets. 15. The method of claim 14, wherein the packet genus identifies a protocol and a port for the packet type, the packet species identifies a term used in connection with embedded addressing information in the packet type, and the locator identifies an offset to the embedded addressing information from a known location in the packet. 16. The method of claim 13, the act of translating the embedded addressing information comprising translating an Internet Protocol (IP) address between a private network addressing system and a public network addressing system. 17. A system for translating embedded addressing information between disparate addressing systems, comprising: a database including a plurality of records each operable to identify a packet having embedded addressing information and the embedded addressing information in the packet; and a translation engine operable to compare at least a portion of a packet, including a packet payload of the packet, to the records in the database to determine whether the packet includes embedded addressing information, to identify embedded addressing information in a packet in response to determining that the packet includes embedded addressing information, to translate the identified embedded addressing information, and to replace the identified embedded addressing information in the packet with the translated addressing information. 18. The system of claim 17, wherein each record includes a packet genus identifying a packet type capable of including embedded addressing information, a packet species identifying packets of the type that include embedded addressing information, and a locator identifying the embedded addressing information in the packets. 19. The system of claim 18, wherein the packet genus identifies a protocol and a port for the packet type, the packet species identifies a term used in connection with embedded addressing information in the packet type, and the locator identifies an offset to the embedded addressing information from a known location in the packet. 20. The system of claim 17, wherein the system is a router.