| US 7,515,009 B2 | ||
| Oscillating apparatus with adjustable oscillating frequency | ||
| Wen-Chi Wu, Tao-Yuan (Taiwan); Yao-Ching Wang, Chang-Hua Hsien (Taiwan); and Chi-Mo Huang, Hsin-Chu (Taiwan) | ||
| Assigned to Ili Technology Corp., Jhubei, Hsinchu County (Taiwan) | ||
| Filed on Oct. 30, 2006, as Appl. No. 11/554,040. | ||
| Prior Publication US 2008/0111645 A1, May 15, 2008 | ||
| Int. Cl. H03L 7/099 (2006.01) | ||
| U.S. Cl. 331—185 [331/16; 331/113 R] | 13 Claims |
| 1. An oscillating apparatus, comprising:
a biasing circuit, for dynamically adjusting a bias signal of the oscillating apparatus, comprising:
a connecting port, for coupling an impedance device to control a frequency of an oscillating signal or for coupling a clock
source to receive a reference clock;
a detecting circuit, coupled to the connecting port, for detecting whether the connecting port is coupled to the impedance
device or the clock source for generating a selection signal;
a selecting circuit, comprising an AND gate coupled to a multi-vibrator and the selection signal, and an OR gate coupled to
the AND gate and the connecting port; and
the multi-vibrator, coupled to the biasing circuit, for generating the oscillating signal according to the biasing signal.
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