JPH02101238U - - Google Patents
Info
- Publication number
- JPH02101238U JPH02101238U JP1989008914U JP891489U JPH02101238U JP H02101238 U JPH02101238 U JP H02101238U JP 1989008914 U JP1989008914 U JP 1989008914U JP 891489 U JP891489 U JP 891489U JP H02101238 U JPH02101238 U JP H02101238U
- Authority
- JP
- Japan
- Prior art keywords
- sampling clock
- frequency
- sampling
- sound
- clock frequency
- 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.)
- Granted
Links
- 238000005070 sampling Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
- G01H3/04—Frequency
- G01H3/08—Analysing frequencies present in complex vibrations, e.g. comparing harmonics present
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H7/00—Measuring reverberation time ; room acoustic measurements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/14—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for acoustics
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Optimization (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Algebra (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Acoustics & Sound (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989008914U JPH05827Y2 (US06650917-20031118-M00005.png) | 1989-01-27 | 1989-01-27 | |
| EP90300717A EP0380310B1 (en) | 1989-01-27 | 1990-01-23 | An acoustic analysis device and a frequency conversion device used therefor |
| DE90300717T DE69001908T2 (de) | 1989-01-27 | 1990-01-23 | Akustisches Analysegerät und ein dabei verwendetes Frequenzumwandlungsgerät. |
| US08/170,678 US5392381A (en) | 1989-01-27 | 1993-12-17 | Acoustic analysis device and a frequency conversion device used therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989008914U JPH05827Y2 (US06650917-20031118-M00005.png) | 1989-01-27 | 1989-01-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02101238U true JPH02101238U (US06650917-20031118-M00005.png) | 1990-08-13 |
| JPH05827Y2 JPH05827Y2 (US06650917-20031118-M00005.png) | 1993-01-11 |
Family
ID=11705927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989008914U Expired - Lifetime JPH05827Y2 (US06650917-20031118-M00005.png) | 1989-01-27 | 1989-01-27 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5392381A (US06650917-20031118-M00005.png) |
| EP (1) | EP0380310B1 (US06650917-20031118-M00005.png) |
| JP (1) | JPH05827Y2 (US06650917-20031118-M00005.png) |
| DE (1) | DE69001908T2 (US06650917-20031118-M00005.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008224306A (ja) * | 2007-03-09 | 2008-09-25 | Nippon Telegraph & Telephone East Corp | スペクトラム解析装置 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995001011A1 (en) * | 1993-06-21 | 1995-01-05 | British Telecommunications Public Limited Company | Method and apparatus for testing telecommunications equipment using a reduced redundancy test signal |
| DE19847015A1 (de) * | 1998-10-13 | 2000-04-20 | Bosch Gmbh Robert | Vorrichtung und Verfahren zum digitalen Aufzeichnen eines analogen Audiosignals in einem digitalen Speicher |
| WO2005078945A1 (en) * | 2004-02-13 | 2005-08-25 | Matsushita Electric Industrial Co., Ltd. | Wireless communications system and wireless digital receiver for use therein |
| CN101958073B (zh) * | 2010-09-09 | 2012-01-18 | 德州学院 | 声音特性综合实验仪 |
| CN102005148A (zh) * | 2010-09-21 | 2011-04-06 | 德州学院 | 自动驻波实验仪 |
| CN103512650A (zh) * | 2012-06-21 | 2014-01-15 | 鸿富锦精密工业（深圳）有限公司 | 蜂鸣器测试电路 |
| CN104091500A (zh) * | 2014-06-10 | 2014-10-08 | 李建荣 | 一种比较物体传声能力的装置 |
| CN104330152A (zh) * | 2014-11-25 | 2015-02-04 | 重庆矢崎仪表有限公司 | 一种蜂鸣器声音测试电路 |
| US10354673B2 (en) * | 2018-01-24 | 2019-07-16 | Hisense Mobile Communications Technology Co., Ltd. | Noise reduction method and electronic device |
| US11132177B2 (en) * | 2019-05-14 | 2021-09-28 | International Business Machines Corporation | CMOS-compatible high-speed and low-power random number generator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS602680B2 (ja) * | 1981-06-18 | 1985-01-23 | 三洋電機株式会社 | 音声合成装置 |
| US4627090A (en) * | 1982-07-19 | 1986-12-02 | Smith Engineering | Audio frequency multiplication device |
| DE3233288A1 (de) * | 1982-09-08 | 1984-03-08 | Robert Bosch Gmbh, 7000 Stuttgart | System zur zeitlichen kompression und/oder expansion von elektrischen signalen |
-
1989
- 1989-01-27 JP JP1989008914U patent/JPH05827Y2/ja not_active Expired - Lifetime
-
1990
- 1990-01-23 DE DE90300717T patent/DE69001908T2/de not_active Expired - Fee Related
- 1990-01-23 EP EP90300717A patent/EP0380310B1/en not_active Expired - Lifetime
-
1993
- 1993-12-17 US US08/170,678 patent/US5392381A/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008224306A (ja) * | 2007-03-09 | 2008-09-25 | Nippon Telegraph & Telephone East Corp | スペクトラム解析装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0380310B1 (en) | 1993-06-16 |
| EP0380310A3 (en) | 1991-05-29 |
| EP0380310A2 (en) | 1990-08-01 |
| JPH05827Y2 (US06650917-20031118-M00005.png) | 1993-01-11 |
| DE69001908D1 (de) | 1993-07-22 |
| US5392381A (en) | 1995-02-21 |
| DE69001908T2 (de) | 1993-11-18 |
