Abstract: A modular keyboard video and mouse (KVM) switching system comprises a core KVM switch module, one or more console peripheral interface modules (CPIM) and one or more host computer interface modules (HIM). The CPIM interfaces console peripheral devices to the core KVM switch module and the HIM interfaces host computer to the core KVM switch module Changing of console peripheral devices or host computer involves adapting a corresponding CPIM or HIM without changing the core KVM switch module.

Abstract: A system incorporating a smartphone and an add-on device coupled to each other via combined data/power interface, the smartphone having a rechargeable battery connected to battery protection circuitry and the add-on device optionally having a rechargeable battery connected to battery protection circuitry as well, the combined data/power interface having one or more data pins for transferring data between the smartphone and the add-on device, one or more regulated power delivery pins, and one or more protected-battery power delivery pins, wherein the regulated power delivery pins are used to charge the battery of the smartphone from an external charger coupled to the add-on device, the batteries are connected to the battery protection circuitries that is configured to protect the battery by cutoff or limit the current or voltage on the battery electrodes, and the protected-battery power delivery pins are connected to the battery protection circuitries of the smartphone or add-on device.

Abstract: A secure mediator for coupling between one or more hosts and one or more consoles comprising one or more peripheral devices. the secure mediator comprises host side ports, each host side port is configured to be connected to a corresponding host, and console side ports, each console side port is configured to be connected to a corresponding peripheral device. The secure mediator comprises: a triggering circuitry; a timing/control circuitry; a setup circuitry; a switching circuitry; and the rest of the mediator circuitries, wherein the triggering circuitry, timing/control circuitry, setup circuitry, and switching circuitry are non-programable circuitries. The mediator has at least two stages: a security setup stage and a normal operation stage. The triggering circuitry is configured to monitor events and to signal these events to the timing/control circuitry in order to trigger a transfer between the security setup stage and the normal operation stage.

Abstract: A secure audio switch comprising: a plurality of host computer interfaces, each for interfacing the secure audio switch with a corresponding host computer, for receiving audio signals from said corresponding host computer; a user audio interface, for interfacing the secure audio switch with at least one user audio device, wherein said at least one user audio device comprises at least one of a speaker or an earphone; an Audio Output Channel (AOC), coupled to said user audio interface comprises audio security device to reduce data leak by intentionally reducing data rate capable of flowing through said AOC to a maximum rate comparable to the minimal rate required for reproducing human speech, and forcing audio data flow only in the direction to said user audio interface by using an analog audio diode and an analog low pass filter in the audio output channel (AOC).

Abstract: A system incorporating a smartphone comprising a smartphone and add-on device coupled to each other via combined data/power interface, wherein the smartphone comprises a rechargeable battery connected to battery protection circuitry and the add-on device optionally comprises a rechargeable battery connected to battery protection circuitry as well, the combined data/power interface comprises: one or more data pins for transferring data between the smartphone and the add-on device; one or more regulated power delivery pins; and one or more protected-battery power delivery pins, wherein the regulated power delivery pins are used to charge the battery of the smartphone from an external charger coupled to the add-on device, the batteries are connected to the battery protection circuitries that is configured to protect the battery by cutoff or limit the current or voltage on the battery electrodes, the protected-battery power delivery pins are connected to the battery protection circuitries of the smartphone or add

Abstract: A mediator and a method for securing a mediator for coupling between one or more hosts and one or more consoles comprising one or more peripheral devices. The mediator is having at least three stages: (i) a security setup stage; (ii) a neutralization stage; and (iii) a normal operation stage. In the normal operation stage, the mediator couples between at least one of the one or more peripheral devices and at least one of the one or more peripheral devices. In the neutralization stage the mediator disable coupling between at least one of the one or more peripheral devices and at least one of the one or more peripheral devices. The securing method starts with the security setup stage after at least one of (a) a power-up; (b) a reset; (c) a device connection; and (d) an unlock command.

Abstract: A wireless communication system comprising a smartphone comprising antenna system, and an add-on device that is configured to be attached to the smartphone, wherein, the add-on device comprises, a wireless communication module configured to transmit and receive RF communication signals, and an antenna coupling system that couples between the wireless communication module and the smartphone's antenna system in order to at least transmit or receive the RF communication signals by the smartphone's antenna system, the antenna coupling system couples the RF communication signals by at least one of or the combination of (a) conduction with the enclosure of the smartphone, and (b) induction between the add-on device and the smartphone.

Abstract: A secure phone system comprising a plurality of Voice over IP (VoIP) phones, each having an enhanced security implant device, a Mutual Disabling Unit (MDU) and a method of operating the system for securing VoIP phones located in the same room by disabling a VoIP phone while a call is active in another phone in order to prevent audio eavesdropping.

Abstract: A portable computer providing high level of security comprises of two completely logically and electrically isolated computer modules within one tamper resistant enclosure. One computer module is for Higher-Security applications (refer higher-security to as “red”) and the other is for Lower-Security applications such as email and internet (refer lower-security to as “black”). The two modules are coupled together to secure Peripheral Sharing Switch that enables intuitive user interaction while minimizing the security risk resulted from sharing same peripheral device.

Abstract: A secure cellular communication system comprises a modified smartphone mated with a security pack. A Cryptographic module within the security pack encrypts all cellular outgoing data and decrypts cellular incoming data. The modified smartphone is modified to rout all cellular outgoing data and incoming data via the Cryptographic module within the security pack. The cellular MODEM may reside within the security pack while the phone's cellular MODEM is disabled, or the phone's cellular MODEM may be used.

Abstract: A peripheral devices switch, a peripheral device, and a keyboard configured to be connected to a plurality of host computers. The peripheral devices switch configured to be coupled to at least one set of peripheral devices and to a plurality of host computers. A color is assigned to each host computer and the at least one set of peripheral devices illuminates at least one polychromatic light source with the color that is assigned to an active host computer. A peripheral device interface to interface between the peripheral device and the peripheral devices switch may be a composite interface comprises two independent interface protocols either by sharing a single connector and cable but having separate pins in the connector and corresponding wires in the cable, or by having a separate cable and separate connector to each one of said interface protocol.

Abstract: A method for securing a KVM Matrix system by inserting a plurality of input security isolators, each of the input security isolators is placed between a host computer and matrix host adapter of the KVM matrix system to enforce security data flow policy that is applicable for the corresponding host computer. Additionally, a security filter is placed between peripheral devices and a matrix console adapter to enforce security data flow policy that is applicable for the corresponding peripheral devices.

Abstract: Mediating between host and display where a mediator enforces security policy over bidirectional protocols of a Display Data Channel (DDC) of video communication protocols between host and display, where AD-EDID display emulators are coupled to DDCs of the host's video port, AD-EDID host emulators are coupled to DDCs of display's video port and security enforcing communication units couple between pairs of AD-EDID display emulator and AD-EDID host emulator, where AD-EDID display emulators emulate display operation and behavior over the DDC, AD-EDID host emulators emulate host operation and behavior over the DDC and security enforcing communication units enforce security policy such as unidirectional communication between the pairs of AD-EDID host emulators and AD-EDID display emulators.

Abstract: Systems and methods of a peripheral devices switching system configured to be connected to a plurality of host computers, including at least one set of peripheral devices, a peripheral devices switch that is to be coupled to said at least one set of peripheral devices and said plurality of host computers, where the peripheral devices switch assigns a color to each host computer, and couple between said at least one set of peripheral devices and an active host computer, and one or more polychromatic light sources that are being comprised in the peripheral devices switch, the at least one of the peripheral devices of the sets of peripheral devices or both, where the peripheral devices switch indicates the active host computer by illuminating at least one polychromatic light source by the color that is assigned to the active host computer.

Abstract: A security implant device and a method of operation of the security implant, for securing Voice over IP (VoIP) phone, the implant device disables audio input and output components of the VoIP phone in order to prevent audio eavesdropping.

Abstract: A USB security gateway device is integrated within a host computer. The USB security gateway device is used for protecting a USB port of a host computer against interaction with unauthorized USB device. The USB security gateway device qualifies any USB peripheral device before it allows it to interact with the host device. Qualification parameters are stored in the USB security gateway device and are reprogrammable.

Abstract: A secure cellular communication system comprises a modified smartphone mated with a security pack. A Cryptographic module within the security pack encrypts all cellular outgoing data and decrypts cellular incoming data. The modified smartphone is modified to rout all cellular outgoing data and incoming data via the Cryptographic module within the security pack. The cellular MODEM may reside within the security pack while the phone's cellular MODEM is disabled, or the phone's cellular MODEM may be used.

Abstract: A security device for hindering data theft and data leaks via audio channel of a computer system is based on passing the audio signals through a coding vocoder that receives input audio signal from a computer and compressing the signal to a low bit-rate digital data indicative of human speech; and a decoding vocoder that decompress the digital data back to a secure audio signal. The data transfer of the protected audio channel is intentionally limited not to exceed the bit-rate needed to carry vocoder-compressed human speech which is well below the capabilities of unprotected audio channel. Both analog and digital audio ports may be protected. Hardware bit-rate limiter protect the system from software hacking.

Abstract: A portable computer providing high level of security comprises of two completely logically and electrically isolated computer modules within one tamper resistant enclosure. One computer module is for Higher-Security applications (refer higher-security to as “red”) and the other is for Lower-Security applications such as email and internet (refer lower-security to as “black”). The two modules are coupled together to secure Peripheral Sharing Switch that enables intuitive user interaction while minimizing the security risk resulted from sharing same peripheral device.

Abstract: A method for securing a KVM Matrix system by inserting a plurality of input security isolators, each of the input security isolators is placed between a host computer and matrix host adapter of the KVM matrix system to enforce security data flow policy that is applicable for the corresponding host computer. Additionally, a security filter is placed between peripheral devices and a matrix console adapter to enforce security data flow policy that is applicable for the corresponding peripheral devices.