| English | Polish |
| modulation standards | standardy modulacji (Protocols that determine how modems convert digital data into analog signals that can be transmitted over telephone lines) |
| pulse duration modulation | modulacja czasu trwania impulsu (A method of encoding information in a signal by varying the duration of pulses. The unmodulated signal consists of a continuous train of pulses of constant frequency, duration, and amplitude. During modulation, the pulse durations are changed to reflect the information being encoded) |