Abstract: The subject matter discloses a method to determine a relative direction of a target RF transmitter, performed by a direction finding (DF) system comprising at least a pair of antennas having an electromagnetic-absorbing material between them, comprising conducting wireless communication between the target RF transmitter and each one of the antennas of the DF system, measuring the signal strength of the target RF transmitter received at each antenna, calculating the difference between the signal strength measured at each one of the antennas in the pair, and determining a relative direction of the target RF transmitter to be is the direction of the antenna within the pair of antennas in which the stronger signal was measured.

Abstract: The present invention discloses a method to determine the relative distance between electronic devices, by having a main electronic device communicating with at least two electronic devices in a wireless manner, the method comprising changing in a controlled manner a communication parameter used in the wireless communication between the main device and the said electronic devices, conducting wireless communication between said main device to each of the said other devices after each change of parameter, logging if receiving wireless signals from each one of the said two electronic devices for each said change of the communication parameter in said changed state, determining at the main electronic device that one of the at least two electronic devices is closer or further-away than the other electronic device of the at least two electronic devices in relation to the main device.

Abstract: The invention relates to a method for determining by a direction finder (DF) the direction to a Target, which comprises? (a) providing an antenna at said DF, and an array of antennas at the Target; (b) providing a compass at each of said DF and said Target, for determining the azimuth of the DF Heading and of the Target Heading, respectively, with respect to the North; (c) providing at said DF a look-up table which describes n antenna patterns, one per Transmission Mode that may be used respectively at the Target; (d) sequentially performing x Transmission Modes from the Target, each time using another pair of antennas, and during each of said Transmission Modes intentionally, and in a controlled manner attenuating a reception signal at the DF until a loss of communication, and recording the respective attenuation levels; (e) based on said x recorded attenuations levels and said look up table, determining by the DF the direction from the Target to the DF; and (f) receiving at the DF the azimuth of the Target,

Abstract: The present invention relates to a method for determining the direction to a target by a direction finder, which comprises: predefining a direction axis as a 0° direction; first and second pair of antennas arranged such that a first line connecting between the first pair of antennae defines a 0°-180° axis parallel to said direction axis, and a second line connecting said second pair of antennas defines a 90°-270° axis perpendicular to said direction axis; generating a 0° antenna pattern and establishing a wireless communication between the direction finder and said target; attenuating the wireless communication signal until lost and recording the attenuation value; generating a 180° antenna pattern using said first pair of antennas, and establishing a wireless communication between the direction finder and said target; attenuating the wireless communication signal until lost, and recording the attenuation value and concluding a true direction to the target.

Abstract: A method for determining whether a target is within a direction sector of interest of a direction finder and a device for carrying out the method are disclosed. The method calls for (a) predefining the sector of interest; (b) providing at least two antennas; (c) generating an in-phase reference pattern, and establishing wireless communication between the direction finder and the target; (d) attenuating the wireless communication signal between the direction finder and the target and recording the attenuation value which corresponds to the loss of wireless communication as the R reference value; (e) generating an out-of-phase null pattern, and re-establishing wireless communication between the direction finder and the target; (f) repeat step (d) except this time recording the attenuation value which corresponds to the loss of wireless communication as the N null value; (g) determining whether the difference R?N is above or below the threshold difference.

Abstract: The present invention relates to a method for determining the direction to a target by a direction finder, which comprises: predefining a direction axis as a 0° direction; first and second pair of antennas arranged such that a first line connecting between the first pair of antennae defines a 0°-180° axis parallel to said direction axis, and a second line connecting said second pair of antennas defines a 90°-270° axis perpendicular to said direction axis; generating a 0° antenna pattern and establishing a wireless communication between the direction finder and said target; attenuating the wireless communication signal until lost and recording the attenuation value; generating a 180° antenna pattern using said first pair of antennas, and establishing a wireless communication between the direction finder and said target; attenuating the wireless communication signal until lost, and recording the attenuation value and concluding a true direction to the target.

Abstract: The invention relates to a method for determining whether a target is within a direction sector of interest of a direction finder, which comprises: (a) predefining said sector of interest as a specific threshold difference between an R reference value and an N null value; (b) providing at least two antennas arranged in a broad-side configuration within the direction finder; (c) generating an in-phase reference pattern using at least one of said antennas, and establishing wireless communication between the direction finder and said target; (d) attenuating the wireless communication signal between the direction finder and said target until the wireless communication is lost, and recording the attenuation value which corresponds to said loss of wireless communication as the R reference value; (e) generating an out-of-phase null pattern using at least two of said antennas, and re-establishing wireless communication between the direction finder and said target; (f) attenuating the wireless communication signal bet

Abstract: A method for sharing printing elements (33, 34) between plurality of printing product job versions including providing plurality of printing job versions (31A, 31B, 31C, 31D) structures which all are part a single printing job (30). The printing elements (33, 34) which are shared between different printing job versions are identified and are referenced back into the different printing job versions, and printing elements to at least two printing job versions. Any change in the properties of a printing job version such as quantity or the imposition scheme will be automatically reflected in the printing elements referenced (51) by the printing job versions.

Abstract: A system for generating printing production plans (81) includes providing a first printing product specifications and generating a plurality of print production economics sets (62) from the printing product specification. A preferred print production economics set is selected from the print production economics sets and the preferred print production economics set is provided to a printing production plan calculator (46), which calculates a first printing production plan.