Abstract: A system for designing a circuit, which includes a module, uses a computer. A user may program or adapt the computer to perform computer-aided design functions. The computer obtains a description of the module from the user. The computer parses the description of the module to identify a port of the module, and to obtain information about the port. The computer presents to the user the information that it has obtained about the port.

Abstract: A system for designing a circuit, which includes a module, uses a computer. A user may program or adapt the computer to perform computer-aided design functions. The computer obtains a description of the module from the user. The computer parses the description of the module to identify a port of the module, and to obtain information about the port. The computer presents to the user the information that it has obtained about the port.

Abstract: A system for designing a circuit, which includes a module, uses a computer. A user may program or adapt the computer to perform computer-aided design functions. The computer obtains a description of the module from the user. The computer parses the description of the module to identify a port of the module, and to obtain information about the port. The computer presents to the user the information that it has obtained about the port.

Abstract: A system for designing a circuit, which includes a module, uses a computer. A user may program or adapt the computer to perform computer-aided design functions. The computer obtains a description of the module from the user. The computer parses the description of the module to identify a port of the module, and to obtain information about the port. The computer presents to the user the information that it has obtained about the port.

Abstract: A system for designing a circuit, which includes a module, uses a computer. A user may program or adapt the computer to perform computer-aided design functions. The computer obtains a description of the module from the user. The computer parses the description of the module to identify a port of the module, and to obtain information about the port. The computer presents to the user the information that it has obtained about the port.

Abstract: A system for designing a circuit, which includes a module, uses a computer. A user may program or adapt the computer to perform computer-aided design functions. The computer obtains a description of the module from the user. The computer parses the description of the module to identify a port of the module, and to obtain information about the port. The computer presents to the user the information that it has obtained about the port.

Abstract: An electronic view camera integrates a camera head assembly and laptop computer into a tripod mountable unified structure. The rigid frame, that unifies the camera head and computer, accommodates a choice of laptop type computers from a variety of different manufacturers. The open front, back and side design of the rigid frame permits ready access for electrical connections and for access to removable storage devices, keyboard, and pointing device. The computer LCD acts as a large screen viewfinder for the camera and has the “feel” of a professional type view camera rather than the “feel” of a computer system with a photographic peripheral.

Abstract: An object proximity sensor includes a capacitive touch-sensitive transducer including row conductive lines insulated from column conductive lines to from a matrix. An insulating layer is disposed over the matrix and has a thickness selected to achieve significant capacitive coupling between an object placed on its surface and the matrix. Circuitry first drives each of the row conductive lines to a fixed voltage and then simultaneously injects a known amount of charge onto each of the row conductive lines, and then senses for each row conductive line a row-sense voltage created by the known amount of charge injected onto each of the row conductive lines, and, simultaneous with injected the known amount of charge, changes the voltage on all of the column conductive lines in the same direction as the row-sense voltage by an amount no greater than about twice the difference between the fixed voltage and an average of all row-sense voltage in the transducer.