| US 7,501,973 B2 | ||
| High-resolution time-to-digital converter | ||
| Hyoung-Chul Choi, Suwon-si (Korea, Republic of); Seong-Hwan Cho, Daejeon (Korea, Republic of); and Soh-Myung Ha, Yongin-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd., Suwon-si (Korea, Republic of) | ||
| Filed on Nov. 15, 2007, as Appl. No. 11/940,589. | ||
| Claims priority of application No. 10-2006-0112707 (KR), filed on Nov. 15, 2006. | ||
| Prior Publication US 2008/0136698 A1, Jun. 12, 2008 | ||
| Int. Cl. H03M 1/50 (2006.01); H03H 11/26 (2006.01) | ||
| U.S. Cl. 341—166 [327/269; 327/271; 327/284] | 38 Claims |
| 1. A time-to-digital converter comprising:
a first delay line including first resistors coupled in series and receiving a first signal through a start node thereof;
a second delay line including second resistors coupled in series and receiving a second signal through a node thereof corresponding
to an end node of the first delay line;
comparators configured to compare first voltages of nodes of the first delay line with second voltages of corresponding nodes
of the second delay line; and
an encoder configured to generate a digital code based on outputs of the comparators.
|