Abstract: A method for determining HIV-1 co-receptor tropism in an HIV-infected patient includes preparing an HIV-1 envelope protein coding sequence from a sample, introducing the HIV-1 envelope protein coding sequence into a first expression construct using yeast homologous recombination, and using the first expression construct in a cell to cell fusion assay to determine HIV-1 co-receptor tropism.

Abstract: Methods for providing a flash management feature (“FMF”) in a camera system include obtaining a flash intensity value calculated for a flash device by a camera, saving the calculated flash intensity value in memory, accepting a user-provided adjustment of the calculated value, saving the adjusted flash intensity value in a memory, and providing, when the camera transmits the calculated value to the flash device for use during image acquisition, the adjusted value to the flash device instead of the calculated value. A communication device to provide a FMF includes a microprocessor configured to obtain a calculated flash intensity value from a camera, a memory, and a user interface configured to display and allow a user to adjust the calculated value. The microprocessor stores the adjusted flash intensity value in memory, and signals the flash device to emit light at the adjusted value during image acquisition by the camera.

Abstract: Methods for emulating an example photograph with an imaging system include selecting an example photograph from a database of image profiles each including information related to a photographic setup, including one or more settings for equipment therein, for taking the example photograph, determining, from information in the corresponding image profile, a value for a parameter of a device of the imaging system, and transmitting, to the device, a command signal to set the parameter of the device to the determined value. Search queries of the database may be based on equipment of, or available for use with, the imaging system, to return a set of example photographs achievable with the capabilities of the equipment. A commander device includes a command module to retrieve information from such a database and determine therefrom suitable values for imaging system equipment, and a transmission module to transmit corresponding command signals to imaging system equipment.

Abstract: An operation of a non-wireless photographic device, such as light emission from a non-wireless flash, may be synchronized with a selected photographic operation of a wireless camera system, such as image acquisition by a wireless-enabled camera of the system, by receiving a wireless signal transmitted by a wireless camera system device, identifying the signal as preceding the selected operation by a predetermined time interval, and transmitting a signal perceptible to the non-wireless photographic device according to timing calculated so that the responsive operation thereof is synchronized with performance of the selected operation.

Abstract: Providing a radio bridge between primary and secondary camera systems employing incompatible wireless communication protocols (“WCPs”) includes receiving a radio signal from a primary system device, identifying an associated operational command for another primary system device, formatting a command signal conveying the operational command according to the secondary system WCP, and transmitting the command signal to a secondary system device. Optionally, a communication link is established between a primary system device and a non-participant device, by identifying the non-participant device to the primary system device as another primary system device.

Abstract: Methods and systems to prepare and activate a wireless flash device may comprise a remote camera flash device comprising: a first radio communication device coupled to a camera, and at least a second radio communication device coupled to the remote camera flash device. The first radio communication device may transmit at least one radio signal to the second radio communication device in response to receiving camera communications sent from the camera, the second radio communication device sends pseudo camera communications to the remote camera flash device in response to receiving the at least one radio signal, and the second radio communication device does not transmit a radio signal.

Abstract: Methods for providing a flash management feature (“FMF”) in a camera system include obtaining a flash intensity value calculated for a flash device by a camera, saving the calculated flash intensity value in memory, accepting a user-provided adjustment of the calculated value, saving the adjusted flash intensity value in a memory, and providing, when the camera transmits the calculated value to the flash device for use during image acquisition, the adjusted value to the flash device instead of the calculated value. A communication device to provide a FMF includes a microprocessor configured to obtain a calculated flash intensity value from a camera, a memory, and a user interface configured to display and allow a user to adjust the calculated value. The microprocessor stores the adjusted flash intensity value in memory, and signals the flash device to emit light at the adjusted value during image acquisition by the camera.

Abstract: A circuit for generating plural AC signals, at least two of which may be relatively shifted in phase by a selected amount, includes a frequency divider for dividing the frequency of an AC input signal to derive a first AC signal at a relatively reduced second frequency, and a digital phase shifter responsive to the progress of the frequency divider for producing a second AC signal shifted in phase a selected amount from such first AC signal. The circuit is especially suited for use in a conveyor belt rip detector in which input and output coupling means couple an AC transmitter signal to antennas carried by the conveyor belt and receive an AC transmitter signal transmitted by respective antennas, and a detector monitors such AC signals received by said output coupling means and an AC reference signal to detect the integrity of the conveyor belt, for the circuit of the invention may be used to generate such AC signal and such reference signal relatively shifted in phase by a selected amount.

Abstract: Existing conveyor belt rip detection systems presently incorporate a synchronous detector circuit for increasing the rejection of electrical noise. In order for the detector circuit to work at peak efficiency, the input signal occurring when an antenna is over the detector probes must be tuned in phase with the reference signal. The circuit to effect such tuning includes a light emitting diode as an indicator for determining the optimum phase tuning of the oscillator signal through the probes and antennae to a related synchronous detector for achieving maximum signal to noise ratio. A thumb wheel switch is employed to shift the phase of one of the signals with respect to the other to effect the tuning while the light emitting diode is utilized to detect when the thumbwheel switch has shifted the signals into an optimum synchronous relationship.