JP5221456B2 - 目覚し時計 - Google Patents
目覚し時計 Download PDFInfo
- Publication number
- JP5221456B2 JP5221456B2 JP2009154834A JP2009154834A JP5221456B2 JP 5221456 B2 JP5221456 B2 JP 5221456B2 JP 2009154834 A JP2009154834 A JP 2009154834A JP 2009154834 A JP2009154834 A JP 2009154834A JP 5221456 B2 JP5221456 B2 JP 5221456B2
- Authority
- JP
- Japan
- Prior art keywords
- sound
- frequency
- alarm clock
- speaker
- notification sound
- 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.)
- Expired - Fee Related
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Description
また近年では、高周波音が年齢によって聞こえ難くなることを利用した装置が知られている。例えば、特許文献1に記載された発明もその1つである。
20 制御部
21 周波数発生回路
30 時刻表示手段
40 予定時刻設定手段
50 スピーカ
51 振動板
52 アナログアンプ
60 報知音停止手段
70 モード切換え手段
Claims (1)
- 予め指定された予定時刻にスピーカから報知音を発生する目覚し時計において、
前記報知音としては、16−18[kHz]の高周波音を断続的に発生し、
前記高周波音の切れ目では、前記高周波音の周波数を20[kHz]以上に上げて超音波とし、さらに前記超音波の周波数を下げて前記高周波音とすることを特徴とする目覚し時計。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009154834A JP5221456B2 (ja) | 2009-06-30 | 2009-06-30 | 目覚し時計 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009154834A JP5221456B2 (ja) | 2009-06-30 | 2009-06-30 | 目覚し時計 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011012980A JP2011012980A (ja) | 2011-01-20 |
JP5221456B2 true JP5221456B2 (ja) | 2013-06-26 |
Family
ID=43592052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009154834A Expired - Fee Related JP5221456B2 (ja) | 2009-06-30 | 2009-06-30 | 目覚し時計 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5221456B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101958666B1 (ko) * | 2012-10-30 | 2019-07-02 | 엘지전자 주식회사 | 이동 단말기 |
CN108777139A (zh) * | 2018-04-08 | 2018-11-09 | 杭州电子科技大学 | 一种声音定向传播的闹钟 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59152481U (ja) * | 1983-03-31 | 1984-10-12 | 御代田精密株式会社 | 周波数可変発信器付時計 |
JP2007135528A (ja) * | 2005-11-22 | 2007-06-07 | Saku Planning:Kk | 動物撃退装置 |
JP2009065264A (ja) * | 2007-09-04 | 2009-03-26 | Sharp Corp | モスキート音を重畳した音声再生装置及び方法 |
JP4209461B1 (ja) * | 2008-07-11 | 2009-01-14 | 株式会社オトデザイナーズ | 合成音声作成方法および装置 |
-
2009
- 2009-06-30 JP JP2009154834A patent/JP5221456B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2011012980A (ja) | 2011-01-20 |
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