Abstract: Systems for universally locking a trigger of a firearm are provided that require authentication to transition the firearm to an unlocked state. In general, examples of the systems for universally locking a trigger of a firearm described herein are located in an interchangeable grip portion of the firearm or mounted to an accessory rail of the firearm. Embodiments of the system generally include trigger interference or blocking members to prevent actuation of the trigger until the authentication system has authorized the user to fire the firearm. Once the system is authenticated, embodiments of the system remain in an unlocked state while the user is grasping the firearm. When the user removes their hand from the firearm, embodiments of the trigger locking system automatically returns to a locked state, reducing or eliminating unauthorized use of the firearm.

Abstract: A wrist device for unlocking a safety holster for use with a weapon, the holster includes an electronically actuated locking mechanism configured to admit the weapon into the safety holster, and to lock the holster, thereby preventing the withdrawal of the weapon prior to release of the electronically actuated locking mechanism upon receipt of an unlock signal, the wrist device including: a wearable band, adapted to be worn on a forearm; a sensing mechanism operationally coupled to the wearable band and adapted to be actuated as a result of a predefined actuation movement of a hand or forearm wearing the wrist device; a wireless communications component configured to send the unlock signal when the sensing mechanism is actuated; and a processing unit in electrical communication with the sensing mechanism and the wireless communications component.

Abstract: A gun locking and unlocking device, which may be configured to be disposed on or in a gun to alternatively prevent or enable firing, includes a data receiver, a data memory and a logic device for determining whether security data received by the receiver is the same, or substantially the saris, as data stored in the data memory. One or more separate electronic gun key devices are provided to transmit security data and gun control signals to the data receiver of the gun lock device. The logic device responds to the gun control signals transmitted by one of the gun key devices to lock or unlock the gun, respectively, when the received security data and the security data stored in memory are substantially similar. The logic device also automatically locks the gun when the gun is located more than a prescribed distance from the gun key device.

Abstract: A gun lock device, which may be configured to be disposed on or adjacent a gun to alternatively prevent or enable firing, includes a data receiver, a data memory and a logic device for determining whether a potential gun user's biologic data received by the receiver is the same, or substantially the same, as biologic data stored in the data memory. A separate smartphone is provided to collect and transmit the biologic data to the data receiver of the gun lock device. The logic device also responds to a gun control signal transmitted by the smartphone to lock the gun when the smartphone is located in a proscribed area, such as within a school zone or outside a secured area such as an airport or shopping mall.

Abstract: A gun locking and unlocking device, which may be configured to be disposed on or in a gun to alternatively prevent or enable firing, includes a data receiver, a data memory and a logic device for determining whether security data received by the receiver is the same, or substantially the same, as data stored in the data memory. One or more separate electronic gun key devices are provided to transmit security data and gun control signals to the data receiver of the gun lock device. The logic device responds to the gun control signals transmitted by one of the gun key devices to lock or unlock the gun, respectively, when the received security data and the security data stored in memory are substantially similar. The logic device also automatically locks the gun when the gun is located more than a prescribed distance from the gun key device. In case of emergency the gun security feature can be bypassed (overridden) by transmitting a gun control command to either lock or unlock the gun.

Abstract: A firearm safety device for preventing an individual from inserting a magazine or cylinder containing cartridges into the firearm, injecting a cartridge into the firing chamber and pressing the trigger contemplates a transmitter receiver with storage and record information in or on the firearm. The safety device also includes an electromechanical trigger lock, electromechanical magazine or cylinder lock for preventing a magazine or cylinder from being inserted into the firearm and an electromechanical lock for preventing a cartridge from being injected into the firing chamber. In addition, the safety device includes a second or remote transmitter/receiver for carrying by an individual user and/or owner of the firearm for activating and deactivating the firearm safety device. In this embodiment of the invention the safety device is activated if the firearm is pointed in the direction of the user/owner.

Abstract: A barrier operator system is provided including a controller, a motor, a barrier, a power source, and a remote transmitter. The controller scans for a reduced range of radio frequencies while operating in a standby mode to conserve energy. In response to receiving a signal from the remote transmitter, the barrier operator will exit the standby mode and scan for a broader range of frequencies. In response to receiving a command signal from the remote transmitter, the controller will operate the barrier. The controller also scans for signals from an accessory device after exiting the standby mode. The accessory device may also operate in multiple modes with respect to scanning for transmissions and sending signals to the controller.

Abstract: A method for interference reduction is described. A sampling frequency is selected for a digital-to-analog converter (DAC) so that images within a DAC output signal do not interfere with one or more receivers. A sample rate is adjusted of an input signal that is provided to the DAC to match the sampling frequency for the DAC.

Abstract: Systems and methods are disclosed that provide ultra-wideband frequency hopping spread spectrum (UWB-FHSS) solutions for transmit and receive architectures. These UWB-FHSS transmit and receive architectures can transmit signals over an extremely wide bandwidth while using a relatively slow analog-to-digital converter (ADC) without suffering from unacceptable performance degradation. For example, ADCs can be used having sample rates lower than standard Nyquist criteria would require for the bandwidth of the spread spectrum utilized.

Abstract: Methods and apparatus to export tuning data collected in a receiving device are disclosed. An example method of collecting audience measurement data comprises collecting tuning data within a receiving device, and modulating an LED associated with the receiving device to export the collected tuning data from the receiving device.

Abstract: Transmitter device including a modulator apparatus for the generation of a modulated digital signal in a remote control system. The modulated signal is defined by at least one characteristic quantity correlated to an information to transmit. The modulator apparatus is characterized by including a finite states machine for generating a modulating digital signal to combine with a carrier signal and obtain the modulated signal. The finite states machine generates the modulating signal on the basis of digital data corresponding to said at least one characteristic quantity.

Abstract: An apparatus for demodulating a modulated signal comprises an analog to digital converter (2, 12) for converting an analog modulated input signal to a digital signal. The analog to digital converter is arranged to sample the input signal at a predetermined sampling rate. A digital down converter (4, 14) then receives the digital signal at the sampling rate. The digital down converter has an associated digital intermediate frequency and reduces the frequency of the digital signal to one quarter of the sampling rate. A low pass filter (6, 16) filters selected frequencies from the digital signal. A frequency offset stage (8, 18) applies a modification to the frequency of the filtered signal to reduce frequency offset therein, and a differential demodulator (10, 20) demodulates the signal after modifying the frequency to reduce the frequency offset. There is also disclosed a method for demodulating a signal.

Abstract: A encoding/decoding method and device for a remote controller utilizing a baud rate to encrypt data for transmission. The encoding device includes an encoder encoding an identification code into an encrypted code; and an interpreter interpreting the un-encoded portion of the identification code and the encrypted code into a transmission signal. When the encrypted code is in a first base, the plain code corresponding to the encrypted code will be transmitted with a first baud rate; and when the encrypted code is in a second base, the plain code corresponding to the encrypted code will be transmitted with a second baud rate. The decoding device includes a receiver receiving the transmission signal; a interpreter connected to the receiver interpreting the transmission signal into a received signal; an encoder utilizing the same encoding algorithm as in the transmitter to generate a comparison code; and a processor comparing the received signal and the comparison code.

Abstract: A method of determining a transfer speed of an encoded data signal including a clock signal and a data signal is provided. First, the encoded data signal is decoded to generate a decoded clock signal. Then, a data transfer speed of the encoded data signal is determined using the decoded clock signal.

Abstract: Tones that are generated by a telephone or PC (such as DTMF tones) and subject to loss or noise during generation or during transmission along a medium are detected and replaced with substantially noise-free and distortionless digital signals. In one embodiment, the replacement of the tones is done in a modem embodied in an Internet telephony Gateway/Terminal, such as in a network access server coupling a time division multiplexed telephone line to a packet-switched network. The replacement of the tones may also be performed in any suitable device that provides an interface between a time division multiplexed transmission medium and a packet switched data network, such as in the modems of a cellular telephone network to Internet network access server.

Abstract: A transmitter unit generates a carrier signal in the form of a periodic bipolar signal. The carrier signal has intrapulse periods between two pulses of different polarity. A transmission antenna is operated with the bipolar signal. To prevent the harmonic oscillations of the transmitted signals from having excessively great amplitudes, the intrapulse period is defined such that the amplitude of the first harmonic of the transmitted oscillation, ascertained by Fourier analysis, is greater than 90% and the amplitude of the third harmonic oscillation is less than 25%, in comparison with the amplitude of the fundamental oscillation of a rectangular oscillation without intrapulse periods.