The phrase "an encrypted signal" is correct and usable in written English.
You can use it when referring to a signal that has been encoded to prevent unauthorized access or interception.
Example: "The communication system relies on an encrypted signal to ensure the privacy of the transmitted data."
Alternatives: "a coded signal" or "a secure signal."
If a goal has been scored, an encrypted signal is sent to the referee's wrist watch which triggers a vibration and a visual notice.
Megamos Crypto refers to a transponder built into car keys which uses RFID (radio-frequency identification) to transmit an encrypted signal to the vehicles.
The Everykey wearable does not store any passwords itself, acting purely as an authenticator, via an encrypted signal sent over Bluetooth 4.0 when the wristband is within a customisable range to the Bluetooth device you are using.
When a phone is waved in front of a credit card reader, it wirelessly sends an encrypted signal with a person's credit card information.
Both methods do not correlate the reflected signal with a clean replica signal, but directly cross-correlate the line-of-sight signal received from a zenith-looking antenna either with the reflected signal from a nadir-looking antenna for the first method or with a modelled replica of the encrypted signal obtained in a semi-codeless way for the second method.
It communicates wirelessly via a secure, 128-bit encrypted, signal and uses digital spread spectrum to reduce interference, including the buzz from nearby cell phones.
The encrypted signal is masked using an arbitrary function of master chaotic system variables to send and receive via a public channel.
In theory, without the key book B, it is very hard for the eavesdroppers to decipher the encrypted signal even though they have cryptanalyzed the encryption mechanism.
Then, the transmission of pre-processed ECG signal is shown as steps 4 and 5: (4) pre-processed signal encryption [6] and (5) cooperative relay as MIMO for encrypted signal transmission under noise channel.
A cryptanalyst trying to break the system may be in possession of large amounts of encrypted signal except the key book, since it is held by both the encryption and decryption parts and never transmitted through the channel.
Even then, some European Union members, such as France, are raising security-related concerns that their encrypted signal might be compromised.
