共 50 条
- [24] AN EASILY ASSEMBLED PULSE-FREQUENCY RECORDER PROCEEDINGS OF THE SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE, 1948, 67 (02): : 240 - 242
- [26] Description of a Differential Pulse-Frequency Modulator Analog Integrated Circuits and Signal Processing, 1999, 19 : 295 - 301
- [27] THEORETICAL STUDY OF PULSE-FREQUENCY MODULATION PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1949, 37 (11): : 1277 - 1286