JPS6376897U - - Google Patents
Info
- Publication number
- JPS6376897U JPS6376897U JP1986170538U JP17053886U JPS6376897U JP S6376897 U JPS6376897 U JP S6376897U JP 1986170538 U JP1986170538 U JP 1986170538U JP 17053886 U JP17053886 U JP 17053886U JP S6376897 U JPS6376897 U JP S6376897U
- Authority
- JP
- Japan
- Prior art keywords
- envelope
- data
- switching point
- calculating
- maximum distance
- 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
- 238000010586 diagram Methods 0.000 description 2
Description
第１図はこの考案の一実施例に係るエンベロー
プ近似装置の全体構成図、第２図はエンベロープ
近似回路の構成例を示す図、第３図は実施例にお
ける最適切換点の選択の原理を説明する図、第４
図は直線切換点解析部の構成例を示す図、第５図
はエンベロープ近似回路の動作を示すフローチヤ
ートである。
１……エンベロープデータメモリ、２……エン
ベロープ近似回路、３……近似エンベロープメモ
リ、２２……直線切換点解析部。
Fig. 1 is an overall configuration diagram of an envelope approximation device according to an embodiment of this invention, Fig. 2 is a diagram showing an example of the configuration of an envelope approximation circuit, and Fig. 3 explains the principle of selecting the most appropriate switching point in the embodiment. Figure 4
The figure shows an example of the configuration of the linear switching point analysis section, and FIG. 5 is a flowchart showing the operation of the envelope approximation circuit. 1... Envelope data memory, 2... Envelope approximation circuit, 3... Approximate envelope memory, 22... Linear switching point analysis section.
Claims (1)
エンベロープ波形を切換点で方向が変わる限られ
た数の直線で近似するエンベロープ近似装置にお
いて、 ２点間を結ぶ直線データを発生する直線データ
発生手段と、 上記直線データとエンベロープデータの両波形
間の最大距離を算出する算出手段と、 上記最大距離に基づいて切換点を決定する切換
点決定手段と、 を有することを特徴とするエンベロープ近似装置
。[Claim for Utility Model Registration] In an envelope approximation device that approximates an envelope waveform expressed by given envelope data with a limited number of straight lines whose direction changes at a switching point, straight line data connecting two points is generated. a linear data generating means for calculating the linear data; a calculating means for calculating the maximum distance between the waveforms of the linear data and the envelope data; and a switching point determining means for determining the switching point based on the maximum distance. envelope approximation device.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986170538U JPH0631516Y2 (en) | 1986-11-06 | 1986-11-06 | Envelop approximation device |
| US07/408,412 US4958552A (en) | 1986-11-06 | 1989-09-14 | Apparatus for extracting envelope data from an input waveform signal and for approximating the extracted envelope data |
| US07/758,529 US5200567A (en) | 1986-11-06 | 1991-09-06 | Envelope generating apparatus |
| US08/232,879 US5548080A (en) | 1986-11-06 | 1994-04-25 | Apparatus for appoximating envelope data and for extracting envelope data from a signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986170538U JPH0631516Y2 (en) | 1986-11-06 | 1986-11-06 | Envelop approximation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6376897U true JPS6376897U (en) | 1988-05-21 |
| JPH0631516Y2 JPH0631516Y2 (en) | 1994-08-22 |
Family
ID=31105360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986170538U Expired - Lifetime JPH0631516Y2 (en) | 1986-11-06 | 1986-11-06 | Envelop approximation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631516Y2 (en) |
-
1986
- 1986-11-06 JP JP1986170538U patent/JPH0631516Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0631516Y2 (en) | 1994-08-22 |
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