In the case of the process for secure access to a determined space, it is provided that after activation of the wearable object, a first coded signal is transmitted from the access or unlocking device, this first coded signal is received in the object and a coded response signal is transmitted with synchronization to the device after a defined time of transmission. A processing of the coded response signal converted in the processing unit of the device is conducted in order to check the defined time delay and the response code of the wearable object and to determine the flight times of the signals between the device and the wearable object. The distance separating the wearable object and the access or unlocking device is thus calculated to authorize access to the determined space if the calculated distance is below a determined threshold after recognition of the wearable object.

Protocols for wireless communications between controllers in vehicles, key fobs, and sensors are shown. In particular, methods of parallel processing and interweaving data in signals are provided.

A method for providing authorization to access a vehicle using a portable electronic key. The vehicle comprises two transceivers configured to emit a first signal and to receive a second signal from the portable electronic key. The authorization is subject to a successful completion of a control procedure including determining, for each of the first signals, a first piece of information based on at least one strength measurement of the first signal at the portable electronic key, determining, for the second signal, a second piece of information and checking whether first pieces of information determined for the first signals based on at least one strength measurement of the first signals at the portable electronic key are consistent with second pieces of information determined for the second signal based on at least one strength measurement of the second signal at each of the transceivers, and, if so, initiating or granting access to an unlocking procedure configured to provide the authorization.

In the case of the process for secure access to a determined space, it is provided that after activation of the wearable object, a first coded signal is transmitted from the access or unlocking device, this first coded signal is received in the object and a coded response signal is transmitted with synchronisation to the device after a defined time of transmission. A processing of the coded response signal converted in the processing unit of the device is conducted in order to check the defined time delay and the response code of the wearable object and to determine the flight times of the signals between the device and the wearable object. The distance separating the wearable object and the access or unlocking device is thus calculated to authorise access to the determined space if the calculated distance is below a determined threshold after recognition of the wearable object.

An activate signal is sent out from a remote controller via a first channel. An authorization process is activated after the activate signal is received by an access control terminal. A control signal is sent out from the remote controller via a second channel to the access control terminal. The access control terminal is unlocked if the control signal received by the access control terminal is verified by the authorization process to be consistent with a predetermined rule. The first channel is different from the second channel.

Protocols for wireless communications between controllers in vehicles, key fobs, and sensors are shown. In particular, methods of parallel processing and interweaving data in signals are provided.

A keyless entry apparatus includes: a vehicle-side device provided in a vehicle, the device including a vehicle-side transmitter that transmits a request signal and a vehicle-side receiver that receives an answer signal; and a mobile device including a mobile device receiver that receives the request signal and a mobile device transmitter that transmits the answer signal in accordance with the request signal. The vehicle-side device includes at least one modulator that modulates the request signal, the mobile device includes at least one demodulator that demodulates the request signal in accordance with the corresponding at least one modulator, and the request signal includes a signal modulated by the at least one modulator. Switching between modulation methods for the request signal is performed at at least one timing.

A security system can include an electronic doorbell comprising a first camera configurable to capture an image of a first zone, a button configurable to enable a visitor to sound an electronic chime, and a first microphone configurable to capture sounds. The security system can also include an electronic garage door controller communicatively coupled to the electronic doorbell, the electronic garage door controller comprising a second camera configurable to capture an image of a second zone, and a second microphone configurable to capture sounds. The security system can also include a remote computing device communicatively coupled to at least one of the electronic doorbell and the electronic garage door controller. The remote computing device can be configurable to display at least one of the image of the first zone and the image of the second zone.

Systems are provided for secure actuation of a device such as a moveable barrier operator. In certain embodiments, portions of communications are configured in order to cause information to be added to or deleted from a memory of one of the devices.

Systems are provided for secure actuation of a device such as a moveable barrier operator. In certain embodiments, portions of communications are configured in order to cause information to be added to or deleted from a memory of one of the devices.