Abstract: An Internet based Time Distributed Message Network (TDMN) system and the Personal Mobile Access Device (PMAD) access the system to perform one to one or one to group two-way voice/video and data communications between/among PMADs. The present invention encodes and packs the original voice/video and data information into Time Distributed Message Unit (TDMU). The TDMN system routes the TDMU from the sender PMAD to receiver PMAD. To do this, the TDMN system forms two virtual links (virtual control and security data link, virtual communication data link) to connect the sending and receiving PMADs. When all TDMUs of one operation reach the destination PMAD, the receiving PMAD decodes and reassembles them into the original data format, and runs the corresponding applications. Because the TDMU transmission and reassembly are time distributed, the shortage of the Internet transmission cannot affect the transmission and the reassembly of the TDMU. So the virtual links formed by the TDMN system provides excellent QOS.

Abstract: A dual channel redundant wireless network link formed by the Redundant Fixed Wireless Network Link device 10 of the present invention provides a very high reliable network element for mission critical wireless network application. Redundant Fixed Wireless Link device (10) with two wireless networking radio channel (11, 12) turned on simultaneously, and running networking service feature is working as Service Equipment (SE). Both wireless networking radio channel (11, 12) of the SE have the same directional wireless network coverage area. The two wireless networking radio channels (11, 12) are separated by cross polarization of antenna at same radio frequency, or different radio frequency characteristics. One Redundant Fixed Wireless Link device (10) with one of its two wireless networking radio channel (11, 12) turned on and communicating with said SE, and loaded with networking client feature is acting as Client Equipment (CE).

Abstract: A Multi-Channel Redundant Wireless Network Link (RWNL) device (10) comprises a plurality of wireless networking radio units, a processor unit, a radio control unit, and wired network units. Two RWNL devices communicating to each other form a multi-channel redundant wireless network communication link. The RWNL device aggrades the networking bandwidth of all its wireless networking units to become a big networking bandwidth. Network packets flow control means controls the networking packets transmitted between the wireless networking units and wired networking unit, the communication between the local wireless networking units to remote wireless networking units of the other RWNL. When the communication of one of the wireless networking channels failed to continue the communication, the flow control means will redistribute the packet flow among the remaining wireless networking radio units, shutdown the problem wireless networking channel, and report the networking status.

Abstract: The Service Transmit Equipment (STE) in the invention has one wireless networking interface communicating to a plurality of Client Utility Equipments (CUE) forming a cell network. The STE is the node router of the cell network. The cell network connects to other networks via the STE. A plurality of cell networks connect together to a core network forms a service wireless network system. The CUE is the edge network traffic control equipment; each connects to a plurality of clients with different service agreement predefined. The CUE controls the transition of the network packets from or to its clients. Only useful network packets from clients can be allowed into the service network. The system maintains a high efficiency of internal bandwidth utilization, and can service clients with a versatile networking performance.

Abstract: A compact computer system board 10 comprises dual on PCB expansion zones 11, 12, expansion connectors 113, 123 which can be connected to expansion boards. Once a expansion board is connected to the expansion connector 113 (123) in the on PCB expansion zone 11 (12) to extent the application of the system 10, a metal housing cover 20 will be mounted above the on PCB expansion zone 11(12). The shield expansion apparatus formed by on PCB expansion zone 11 (12) and metallic housing cover 20 isolates the electromagnetic interference between add-on expansion daughter card and the environment outside of the shield expansion apparatus. The metal housing cover 20 as well as the on PCB expansion zone 11 (12) function as the heat sink of the add-on expansion daughter card inside the apparatus.

Abstract: The present invention disclosures a method for aiming antennas during the installation of microwave communication systems. By computerized link quality monitoring mechanism, the software of the computer system can monitor the link quality of the link during the aiming of the installation. The link quality comprises the performance of data communication status, and the signal strength and noise tests result. By aiming and installing the antenna at the best link quality direction, the microwave communication system will work at best performance status. The software system also will guide the installer to follow certain procedures and finally affix and aim the antenna to the best direction. There are no extra equipments, such as high cost spectrum analyzer needed. And also, no super high-skilled microwave experts are needed to install and setup the microwave communication system.

Abstract: The Service Transmit Equipment (STE) in the invention has one wireless networking interface communicates to a plurality of Client Utility Equipments (CUE) forms a cell network. The STE is the node router of the cell network. The cell network connects to other networks via the STE. A plurality of cell networks connect together to a core network forms a service wireless network system. The CUE is the edge network traffic control equipment; each connects to a plurality of clients with different service agreement predefined. The CUE controls the transition of the network packets from or to it clients. Only useful network packets from clients can be allowed into the service network. The system maintains a high efficiency of internal bandwidth utilization, and can service clients with a versatile networking performance.

Abstract: The present invention disclosures a method for aiming antennas during the installation of microwave communication systems. By computerized link quality monitoring mechanism, the software of the computer system can monitor the link quality of the link during the aiming of the installation. The link quality comprises the performance of data communication status, and the signal strength and noise tests result. By aiming and installing the antenna at the best link quality direction, the microwave communication system will work at best performance status. The software system also will guide the installer to follow certain procedures and finally affix and aim the antenna to the best direction. There are no extra equipments, such as high cost spectrum analyzer needed. And also, no super high-skilled microwave experts are needed to install and setup the microwave communication system.

Abstract: A digital electronic audio player (DEAP) shaped similar to a cassette tape can be inserted into a cassette tape player such as a car cassette player. When the DEAP is inserted into a cassette player, the cassette tape play simulation and motion detection means sense the operation from the cassette player. When the play forward function of the cassette player is selected, the DEAP senses the operation from the player and plays the audio message in the memory; and output signal through the signal coupling magnetic head to the magnetic head of the cassette player just like a cassette tape. When the other functions (play backward, forward music search/fast forward, reverse music search/rewind etc.) are selected from the cassette player, the DEAP senses and dose the corresponding operations. The extension adaptor can be optionally mounted onto the digital electronic audio player, the new integrity works as one unit which has more memory, power supply and can communicate with a computer.

Abstract: A method and system is provided to improve election with easy use, security, and accuracy. Voters use vote stamp to vote on ballot. The ballot with a vote stamp design not only provides voters very clear and easy use way to vote, but also the standardized vote stamp greatly improve the tally accuracy. The digital encrypted start code on the ballot provides both pre-vote validity check of the ballot and the validity check of the tally system. Computerized tally system comprises multiple tally units can tally the regular ballot accurately and efficiently, while the non-regular voted ballot, bad ballots, illegal ballots are sorted out for further process. The counted record on the ballot helps the system to identify the ballots, which are already counted. Graphic identification system comprises multiple graphic identification units, can process the non-regular voted ballots and find out the exact intend of the voters.

Abstract: A compact computer system board 10 comprises dual shield expansion zones 11, 12, expansion connectors 113, 123 which can be connected to expansion boards. Once a expansion board is connected to the expansion connector 113 (123) in the shield expansion zone 11 (12) to extent the application of the system 10, the shield metal housing cover 20 will be mounted above the shield expansion zone 11(12). The shield expansion house formed by shield expansion zone 11(12) and shield metal housing cover 20 isolates the electromagnetic interference between expansion board and the outside surrounding. The shield metal housing cover 20 as well as the shield expansion zone 11 (12) is the heat sink of the expansion board inside. The shield expansion housing solutions guarantee the system processing high reliability and stably in the limited space of the system board.

Abstract: A Multi-Channel Redundant Wireless Network Link (RWNL) device (10) comprises plurality of wireless networking radio units, a processor unit, a radio control unit, and wired network units. Two RWNL devices communicating to each other form a multi-channel redundant wireless network communication link. The RWNL device aggrades the networking bandwidth of all its wireless networking units to become a big networking bandwidth. Network packets flow control means controls the networking packets transmitted between the wireless networking units and wired networking unit, the communication between the local wireless networking units to remote wireless networking units of the other RWNL. When the communication of one of the wireless networking channels failed to continue the communication, the flow control means will redistribute the packet flow among the remaining wireless networking radio units, shutdown the problem wireless networking channel, and report the networking status.

Abstract: An Internet based Time Distributed Message Network (TDMN) system and the Personal Mobile Access Device (PMAD) access the system to perform one to one or one to group two-way voice/video and data communications between/among PMADs. The present invention encodes and packs the original voice/video and data information into Time Distributed Message Unit (TDMU). The TDMN system routes the TDMU from the sender PMAD to receiver PMAD. To do this, the TDMN system forms two virtual links (virtual control and security data link, virtual communication data link) to connect the sending and receiving PMADs. When all TDMUs of one operation reach the destination PMAD, the receiving PMAD decodes and reassembles them into the original data format, and runs the corresponding applications. Because the TDMU transmission and reassembly are time distributed, the shortage of the Internet transmission cannot affect the transmission and the reassembly of the TDMU. So the virtual links formed by the TDMN system provides excellent QOS.

Abstract: A dual channel redundant wireless network link formed by the Redundant Fixed Wireless Network Link device 10 of the present invention provides a very high reliable network element for mission critical wireless network application. Redundant Fixed Wireless Link device (10) with two wireless networking radio channel (11,12) turned on simultaneously, and running networking service feature is working as Service Equipment (SE). Both wireless networking radio channel (11,12) of the SE have the same directional wireless network coverage area. The two wireless networking radio channels (11,12) are separated by cross polarization of antenna at same radio frequency, or different radio frequency character. One Redundant Fixed Wireless Link device (10) with one of its two wireless networking radio channel (11,12) turned on and communicating with said SE, and loaded with networking client feature is acting as Client Equipment (CE).

Abstract: A processor unit (164) with two system buses: bus1 (161) and bus2 (162), which multiple wireless networking radio units (102, 112, 122, 132) and multiple wired networking units (165, 166, 167, 168) can be connected to. The processor unit (164) is the system-operating platform, and dose the networking functions among the networking units. A radio control unit (163) monitor and control the physical part of radio performance. Each wireless networking radio unit (102, 112, 122, 132) as long as each directional antenna (101, 111, 121, 131) will communicate with remote same type of wireless networking device and form a wireless network link. Multiple wired networking units (165, 166, 167, 168) can connect to wired network. The number and type of the wireless networking radio units (102, 112, 122, 132) and wired networking units (165, 166, 167, 168) can be selected, installed according to specific networking requirement, thus configure the hardware system of the device.