JP2001167532A - 周波数比較回路 - Google Patents
周波数比較回路Info
- Publication number
- JP2001167532A JP2001167532A JP34823399A JP34823399A JP2001167532A JP 2001167532 A JP2001167532 A JP 2001167532A JP 34823399 A JP34823399 A JP 34823399A JP 34823399 A JP34823399 A JP 34823399A JP 2001167532 A JP2001167532 A JP 2001167532A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- value
- maximum
- signal
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
- H03D13/001—Circuits for comparing the phase or frequency of two mutually-independent oscillations in which a pulse counter is used followed by a conversion into an analog signal
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Manipulation Of Pulses (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34823399A JP2001167532A (ja) | 1999-12-08 | 1999-12-08 | 周波数比較回路 |
| US09/734,451 US6580297B2 (en) | 1999-12-08 | 2001-05-30 | Frequency comparison circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34823399A JP2001167532A (ja) | 1999-12-08 | 1999-12-08 | 周波数比較回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001167532A true JP2001167532A (ja) | 2001-06-22 |
| JP2001167532A5 JP2001167532A5 (https=) | 2006-12-14 |
Family
ID=18395650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34823399A Pending JP2001167532A (ja) | 1999-12-08 | 1999-12-08 | 周波数比較回路 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US6580297B2 (https=) |
| JP (1) | JP2001167532A (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1918929A1 (en) * | 2002-10-23 | 2008-05-07 | Matsushita Electric Industrial Co., Ltd. | Frequency and phase control apparatus and maximum likelihood decoder |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005032375A1 (de) * | 2005-07-08 | 2007-04-12 | Deutsche Thomson-Brandt Gmbh | Demodulation eines Abtastsignals eines Speichermediums |
| EP2337202B1 (en) * | 2009-12-17 | 2013-06-05 | STMicroelectronics Srl | Switching voltage regulator and related feed-forward control method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5317215A (en) * | 1992-12-01 | 1994-05-31 | 3Com Corporation | Method and apparatus for frequency discriminating computer network signals |
| US5657361A (en) * | 1994-09-06 | 1997-08-12 | Fujitsu Limited | Variant frequency detector circuit |
| KR100259590B1 (ko) * | 1998-01-08 | 2000-06-15 | 김영환 | 주파수 검출회로 |
-
1999
- 1999-12-08 JP JP34823399A patent/JP2001167532A/ja active Pending
-
2001
- 2001-05-30 US US09/734,451 patent/US6580297B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1918929A1 (en) * | 2002-10-23 | 2008-05-07 | Matsushita Electric Industrial Co., Ltd. | Frequency and phase control apparatus and maximum likelihood decoder |
| US7623586B2 (en) | 2002-10-23 | 2009-11-24 | Panasonic Corporation | Frequency and phase control apparatus and maximum likelihood decoder |
Also Published As
| Publication number | Publication date |
|---|---|
| US20020180488A1 (en) | 2002-12-05 |
| US6580297B2 (en) | 2003-06-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20061026 Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20061026 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20061026 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080507 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20080704 Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080704 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20080729 |