TW563122B - Flexible optical power control method and its device - Google Patents

Flexible optical power control method and its device Download PDF

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Publication number
TW563122B
TW563122B TW91123030A TW91123030A TW563122B TW 563122 B TW563122 B TW 563122B TW 91123030 A TW91123030 A TW 91123030A TW 91123030 A TW91123030 A TW 91123030A TW 563122 B TW563122 B TW 563122B
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analog
level
circuit
signal
value
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TW91123030A
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Chinese (zh)
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Ming-Yang Jau
Ya-Luen Yang
Shu-Fang Tsai
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Mediatek Inc
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Abstract

The present invention provides an flexible optical power control method and its device for providing the optimal write power to the optical recording system. When forming an optically readable label on the optical recording system, the optical recording system generates a write reflecting signal, and, when reading the optically readable label, generates a read reflecting signal. The present invention is able to select one of the write reflecting signal and read reflecting signal to perform an analog detection thereby obtaining a first, a second, and a third level for being digitalized. Then, an optimal power parameter is obtained by performing digital average and calculation for being used by the optical recording system to generate the optimal optical write signal power.

Description

563122 A7 B7 五、發明說明(1 ) 【發明領域】 本發明是有關於一種最佳功率彈性控制方法及其 裝置’特別是指一種可減少製造成本、增加參數計算彈 性、穩定性佳以及易於合併不同光功率控制技術之最佳 5 功率彈性控制方法及其裝置。 【發明背景】 在一光記錄系統中,一記錄裝置會產生一雷射光, 10 1 使根據輸入之數位資料產生一光寫入訊號,以在一光記 錄媒體上形成一光可項取標記,而將該數位資料記錄在 光記錄媒體上。為確保資料能被正綠無誤地記錄在光記 錄媒體上,如何控制光寫入訊號的功率成為一重要的技 術。目前用來控制光功率的技術有兩種,一是記錄前光 功率控制(Opt ical Power Control,簡稱〇pc)技術,用 15 以在光§己錄系統進行實際記錄前,決定該記錄裝置之光 寫入訊號的最佳功率,其作法是在一光記錄媒體,例如 一光碟上,利用一測試區段做為功率校準測試之用,並 在這區段上使用一系列不同功率之光寫入訊號進行一 些練習記錄,然後將該等練習記錄讀出,並產生一讀取 反射(Read Ref lected,以下簡稱RRF)訊號,則產生最 20 好記錄品質之寫入功率準位即被選做為最佳之光寫入 訊號功率準位,然後再以該最佳光寫入訊號功率準位在 該光碟的其他區段上進行實際資料記錄。 另一 e己錄中光功率控制(Running Optical Power* Control,簡稱R0PC)技術是在光.記錄系統進行記錄的 25 過程中,擷取光寫入訊號產生之寫入反射(Write 本紙張尺度適用中國國家標準(CNS) A4規格(210x 297公釐) 第4頁 563122 A7 _________B7 五、發明說明(2 )563122 A7 B7 V. Description of the invention (1) [Field of the invention] The present invention relates to an optimal power elasticity control method and device thereof, particularly to a method that can reduce manufacturing costs, increase parameter calculation flexibility, has good stability, and is easy to incorporate. The best 5 power elastic control method and its device for different optical power control technologies. [Background of the Invention] In an optical recording system, a recording device generates a laser light, 10 1 so that a light writing signal is generated according to the input digital data to form an optically removable mark on an optical recording medium. The digital data is recorded on an optical recording medium. In order to ensure that the data can be recorded on the optical recording medium without error, how to control the power of the optical writing signal has become an important technology. There are currently two technologies used to control optical power. One is the Optical Power Control (Opc) technology before recording. The 15 is used to determine the recording device before the optical § recorded system performs actual recording. The best power for optical writing signals is to use a test sector for power calibration test on an optical recording medium, such as an optical disc, and use a series of optical powers of different powers in this sector. Record some practice records in the input signal, then read out these practice records and generate a Read Ref lected (RRF) signal. The writing power level that produces the best recording quality is selected as Write the signal power level for the best light, and then perform actual data recording on other sections of the disc with the optimal light write signal power level. Another e-recorded Optical Power Control (R0PC) technology is to capture the writing reflection generated by the optical writing signal during the recording process of the optical recording system (Write This paper is applicable to this paper standard) China National Standard (CNS) A4 Specification (210x 297 mm) Page 4 563122 A7 _________B7 V. Description of Invention (2)

Reflected,以下簡稱WRF)訊號,對該wrf訊號進行 分析並與一目標值比較後,即時控制該記錄裝置產生一 最佳寫入訊说功率’使光s己錄系統可持續.保持最佳之燒 錄品質。且不論是OPC或ROPC技術,其在對RRF訊號 5或WRF訊號進行計算分析時,會產生一些相關參數,例 如OPC技術在光碟讀取機(CD-R)上使用之石參數及在 光碟讀寫機(CD-RW)上使用之r參數,以及R〇pc技術中 之α參數等’以根據這些,相關參數適當地調整記錄時的 光寫入訊號功率,使光記錄系統能以較佳的光寫入功率 10 δ己錄而產生較佳的寫入效能’亦即可減少記錄的抖動, 因此’這些相關參數的計算實與光寫入訊號的功率習習 相關。所以藉由一好的0PC或R0PC之參數計算方法, 可使光記錄系統獲得更佳之光功率控制^ 美國第5 3 0 3 2 1 7號專利即揭露一種光記錄系統,其 15中提出一種計算OPC技術之控制參數冷的方法,該方 法是以類比電路對讀取光記錄媒體時產生之RRF訊號 檢測,取得其峰值、底值及直流值準位,並利用該峰值、 底值及直流值準位計算得出控制參數点,然後根據該控 制參數沒設定最佳之光寫入訊號功率。但是,由於其計 20 算參數的方法是使用類比電路來實現,計算公式固定且 不易改變,使得控制參數冷的計算方式變得沒有彈性, 難以在不同的OPC方法中實現。 此外’習知另一種以純數位方式計算控制參數点的 方法,是先以一類比/數位轉換器將RRF訊號轉換(量化) 2 5 成一數位碼訊號,然後從該數位碼訊號中找出峰值、底 本紙張尺度適用中國國家標準(CNS) A4規格(210χ 297公楚)'~ --- 563122Reflected (hereinafter referred to as WRF) signal. After analyzing the wrf signal and comparing it with a target value, the recording device is controlled in real time to generate an optimal write signal power to make the optical recording system sustainable. Keep the best Burning quality. And whether it is OPC or ROPC technology, it will generate some related parameters when calculating and analyzing the RRF signal 5 or WRF signal, such as the stone parameters used by the OPC technology on the optical disc reader (CD-R) and reading on the optical disc. The r-parameters used in the CD-RW and the α-parameters in the Ropc technology are used to appropriately adjust the optical writing signal power during recording based on these and related parameters, so that the optical recording system can better The optical writing power of 10 δ has been recorded to produce better writing performance ', which can reduce the recording jitter, so' the calculation of these related parameters is actually related to the power consumption of the optical writing signal. Therefore, with a good parameter calculation method of 0PC or ROPC, the optical recording system can obtain better optical power control. ^ US Patent No. 5 3 0 3 2 1 7 discloses an optical recording system, and a calculation is proposed in 15 The method of controlling parameters of OPC technology is cold. This method uses an analog circuit to detect the RRF signal generated when reading an optical recording medium, obtains its peak value, bottom value and DC value level, and uses the peak value, bottom value and DC value. The control parameter point is calculated by the level calculation, and then the optimal light writing signal power is not set according to the control parameter. However, because its method of calculating parameters is implemented using analog circuits, the calculation formula is fixed and difficult to change, making the calculation method of the control parameter cold inflexible, and difficult to implement in different OPC methods. In addition, the conventional method of calculating control parameter points in pure digital mode is to convert (quantize) the RRF signal by an analog / digital converter 2 5 into a digital code signal, and then find the peak value from the digital code signal, The paper size of the original paper is applicable to the Chinese National Standard (CNS) A4 specification (210 × 297 male Chu) '~ --- 563122

值及直流準位,並利用該峰值、底值及直流準位計算得 -出控制參數々,以根據控制參數y?設定光寫入訊號的最 '佳功率。然而,由於以數位取樣方法對RRF訊號進行類 比/數位轉換時,需要高速的類比/數位轉換器對快速的 5讀取反射訊號進行取樣,但是如此高速的類比/數位轉 換器在實做上難以實現,因此當類比/數位轉換器的取 樣速度不夠快時’即會在峰值、底值的取樣過程中產生 II量化誤差,而無法準確取得讀取反射訊號的峰值及底 值’造成後續計算參數/3上的偏差。 ’ 而且’上述習知計算光功率控制參數的方法都僅針 對OPC技術,對於同時存在有〇pC及R〇pc技術之光記 錄系統’就只能對OPC部分進行光功率控制,對於在記 錄中進行的ROPC則沒有辦法。 【發明概要】 15 因此,本發明之目的即在提供一種可減少成本、增 加參數計算彈性且易於合併記錄前光功率控制(〇PC)及 ❿記錄中光功率控制(ROPC)之最佳功率彈性控制方法及 其裝置。 於是,本發明之最佳功率彈性控制方法,應用在一 20 光記錄系統中,用以提供最佳寫入光功率,該光記錄系 統具有一記錄裝置及一讀取裝置,該記錄裝置提供一光 寫入訊號,使根據輸入之數位資料在一光記錄媒體上形 成對應的光可讀取標記,並產生一寫入反射訊號,該讀 | 取裝置提供一光讀取訊號,用以掃描光記錄媒體上之光 25 可讀取標記,並產生一對應之讀取反射訊號;該最佳功 本紙張尺度適用中國國家標準(CNS) A4規格(210χ 297公釐) 第6頁 563122 A7 B7 五、發明說明(4 率彈 讀取 位、 三準 ;及第 行平 三準 一最 I 置, 及計 反射 二準 路連 >轉換 接, 轉換 位, 得一 20【囷 參考 現, 25 的一 性控制方法包括下列步驟^ 应射π哚甘丄 對该寫入反射訊號及 反射Λ唬其中之一進行類比 一筮一 i ^ 炮測,以獲得一第一準 第一準位及一第三準位。(b 對該第一、第二及第 位進行類比/數位轉換,使成 付俠仗珉為數位化之第-、第二 一準位。(c)對該數位化之第 ,,.,.. 1 1 <弟、第二及第三準位進 计异,以求得平均後之第—準位、第二準位及第 位。⑷根據該平均後之第一、第二及第三準位求得 佳功率參數。 匕外本|日月f現上述方法之最佳工力帛彈性控制裝 包括一檢測電路、一類比/數位轉換電路以及一平均 算電路。該檢測電路用以對該寫入反射訊號及讀取 訊號其中之一進行檢測,以得到一第一準位、一第 位及第一準位。該類比/數位轉換電路與該檢測電 接二用以對該第一、、第二及第三準位進行類比/數位 。该平均及計算電路,與該類比/數位轉換電路連 其分別產生一控制訊號驅動該檢測電路及類比/數位 電路’並用以平均該數位化之第一、第二及第三準 以根據平均後之第一準位、第二準位及第三準位求 最佳功率參數。 式之簡單說明】 本發明之其他技術内容、特徵及優點,在以下配合 圖式之較佳實施例的詳細說明中,將可清楚的呈 在圖式中: 第一圖是本發明最佳功率彈.性控制方法及其裝置 較佳實施例之電路方塊圖; 本紙張尺度Cin國家標準(CNS) A4規格(21〇χ 297公藿_)一 563122 A7 B7 五、發明說明(5 ) 第二圖是本實施例中該讀取反射訊號的波形示意 圖; u 第三圖是本實施例中寫入反射訊號的波形以及該 平均及計算電路針對〇pC方法而產生的各個控制訊號 5 PBHRST、RTB及PBGSEL之波形,第二多工器輸出之 訊號ADC IN的波形,以及類比/數位轉換裝置所產生之 控制訊號ADCRDY的波形; 齡 第四圖是本實施例中該平均及計算電路之内部電 路方塊圖;及 10 第五圖是本實施例中該平均及計算電路針對R〇pc 方法根據控制訊號Η1 1T所產生的各個控制訊號 SHBC、PBHRST、RTB及PBGSEL之波形,第二多工器 輪出之訊號ADC IN的波形,以及類比/數位轉換製置所 產生之控制訊號ADCRDY的波形; 15 【發明之詳細說明】Value and DC level, and use the peak value, bottom value and DC level to calculate the control parameter 々 to set the optimal power of the optical write signal according to the control parameter y ?. However, since the analog / digital conversion of the RRF signal is performed by the digital sampling method, a high-speed analog / digital converter is required to sample the fast 5-read reflection signal, but such a high-speed analog / digital converter is difficult to implement. Implementation, so when the sampling speed of the analog / digital converter is not fast enough, II quantization error will occur in the sampling process of the peak and bottom values, and the peak and bottom values of the read reflection signal cannot be accurately obtained, resulting in subsequent calculation parameters / 3 deviation. 'And' The above-mentioned conventional methods for calculating optical power control parameters are only for OPC technology, and for an optical recording system with both oop and Rpc technologies', only the power control of the OPC part can be performed. There is no way to conduct ROPC. [Summary of the Invention] 15 Therefore, the object of the present invention is to provide an optimal power flexibility that can reduce cost, increase parameter calculation flexibility, and easily incorporate optical power control (〇PC) before recording and optical power control (ROPC) during recording. Control method and device. Therefore, the optimal power elasticity control method of the present invention is applied in a 20 optical recording system to provide the optimal writing optical power. The optical recording system has a recording device and a reading device. The recording device provides a Optical writing signal, so that corresponding optically readable marks are formed on an optical recording medium according to the input digital data, and a writing reflection signal is generated. The reading | fetching device provides an optical reading signal for scanning light The light 25 on the recording medium can read the mark and generate a corresponding read reflection signal; the best paper size for this paper applies the Chinese National Standard (CNS) A4 specification (210χ 297 mm) Page 6 563122 A7 B7 5 、 Explanation of the invention (4 rate bomb reading bit, three-quadruple; and the third row of the three-quadruple-one most I, and the reflection reflection two-quasi-link connection> conversion connection, conversion bit, get a 20 [囷 Refer to the present, 25's The method for controlling sexuality includes the following steps: ^ should shoot one of the written reflection signal and the reflection signal ^ by analogy 筮 炮 i ^ shot to obtain a first quasi-first level and a first Three levels. (B Perform analog / digital conversions on the first, second, and first positions to make Cheng Fu Xia Zhan into the digitalized first and second levels. (C) The digitalized first, .., .. 1 1 < Brother, second and third levels are counted differently to find the averaged first-, second-, and third-level. ⑷ Based on the averaged first-, second-, and third-levels. The best power parameters are obtained at the standard level. The best working force of the above method is described in the above method. The flexible control device includes a detection circuit, an analog / digital conversion circuit, and an average calculation circuit. The detection circuit is used to One of the write reflection signal and the read signal is detected to obtain a first level, a first position, and a first level. The analog / digital conversion circuit is electrically connected to the detection to connect to the first level. , Second, and third levels for analog / digital. The averaging and calculation circuit, connected to the analog / digital conversion circuit, respectively generates a control signal to drive the detection circuit and analog / digital circuit, and is used to average the digitization. The first, second and third levels are based on the averaged first, second and third levels. Three levels to find the best power parameter. Brief description of the formula] The other technical content, features and advantages of the present invention will be clearly presented in the following detailed description of the preferred embodiments in conjunction with the drawings: The first figure is a circuit block diagram of a preferred embodiment of the best power bomb performance control method and device according to the present invention; the paper size is Cin National Standard (CNS) A4 specification (21〇χ297297mm) _563122 A7 B7 V. Description of the invention (5) The second diagram is a waveform diagram of the read reflection signal in this embodiment; the third diagram is the waveform of the write reflection signal in this embodiment, and the averaging and calculation circuit is for the 0pC method. The waveforms of the control signals 5 PBHRST, RTB, and PBGSEL generated, the waveform of the signal ADC IN output from the second multiplexer, and the waveform of the control signal ADCRDY generated by the analog / digital conversion device; the fourth figure is this embodiment The block diagram of the internal circuit of the averaging and calculation circuit in Figure 10; and the fifth figure is the control signals SHBC generated by the averaging and calculation circuit for the Ropc method according to the control signal R1 1T in this embodiment. , PBHRST, RTB, and PBGSEL waveforms, the waveform of the second multiplexer signal ADC IN, and the waveform of the control signal ADCRDY generated by the analog / digital conversion system; 15 [Detailed description of the invention]

20 參閱第一圖所示,是本發明最佳功率彈性控制方法 及其裝置的一較佳實施例,其應用在一同時存在有〇pc 及ROPC之光記錄系統(圖未示)中,該光記錄系統具有 一記錄裝置及一讀取裝置(圖未示),該記錄裝置提供一 光寫入訊號,使根據輸入之數位資料在一光記錄媒體上 形成對應的光可讀取標記,並產生一寫入反射(Write Reflect,以下簡稱WRF)訊號,該讀取裝置提供一光讀 取訊號,用以掃描光記錄媒體上之光可讀取標記,並產 生一讀取反射(Read Reflect,以下簡稱RRF )訊號。而 2 5 本·實施例最佳功率彈性控制裝置2包括一第—多工器 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) ---- 頁 第 563122 A7 B7 五、發明說明(ό ) — . 3、-檢測電& 4、一第二多工器5、一類比/數位轉換 電路6及一平均及計篡雷政π , T异電路7。且本實施例利用上述裝 置2產生最佳功率控制參數之方法如下: *第一多工器3是一 2x1 (2進i出)多工器,其輸入 5端供光記錄系統之RRF訊號及wrf訊號輸入,以選擇 其中一個輸出。 當光記錄系統在記錄數位資料前進行記錄前最佳 f率控制(〇PC)時,其產生之RRF訊號被送入第一多工 器3中,由第一多工器3選擇輸出至檢測電路4中。 1〇 撿測電路4與第一多工器3的輸出端連接,用以對 RRF Λ號或WRF訊號進行檢測。其包括一類比峰值檢 測器41、一類比底值檢測器42、一低通濾波器43及一 取樣保持電路44。在光記錄系統進行〇pc時,第一多 工益3輸出至檢測電路4中的RRF訊號被分別送入類 1 5比峰值檢測器4 1、類比底值檢測器42及低通濾波器43 中進行峰值(peak)、底值(bottom)及直流(DC)準位之檢 測’如第二圖所示’為讀取反射訊號rrF的波形,且 在類比峰值檢測器4 1及類比底值檢測器4 2進行檢測之 前,如第一圖及第三圖所示,平均及計算裝置7會產生 20 —第一控制訊號PBHRST ,並在其脈波ρι出現時重置 (reset)類比峰值檢測器4 1及類比底值檢測器42,使重 新進行檢測,則類比峰值檢測器4 1檢測rrf訊號獲得 一峰值PK,類比底值檢測器42檢測RRF訊號獲得一底 值BT,而低通濾波器43對RRF訊號進行低通濾波而輸 25出一直流準位DC,然後平均及計算電路7發出一第二 本紙張尺度適用中國國家標準(CNS) A4規格(210x 297公釐) 第9頁 563122 五、發明說明(7 ) 控 器 值 之 5類 號 峰 數 10 控 在 對 比 值 15 一 峰 控 路 20暫 電 法 25 準 制訊號PBGSEL控制第二多工 ^ 盗5,令類比峰值檢測 41、類比底值檢測器42及彳 πτ ^ 夂低通濾波器43輸出之底 BT、峰值PK及直流準位dc依庠谁丨哲 说斤進到第二多工器5, 後,第一控制訊號PBHRST的下一 rr、士 〜卜脈波P1則再次將 比峰值及底值檢測器4 1、42番番 ^ $置’使重新對RRF訊 進行檢測。而且1二多卫器5將收心底值Μ、 值pk及直流iM立Dc(即訊號ADcin)依序送至類比/ 位轉換電路6中,與此同時,平垧 咕一丄 ^十均及计算裝置7發出 第三控制訊號RTB給類比/數位轉換電路6,且第三 制訊號RTB中之負向脈波P2令類比/數位轉換電路: 進行每-次類比/數位轉換時先行重置(re—,以依序 先後收到的底值BT、峰值PK及直流準位Dc進行類 /數位轉換’且類比/數位轉換電路6在對底值BT、峰 PK及直流iM立DC進行數位化的過程中,同時產生 第四控制訊號ADCRDY依序將已數位化之底值BT、 值ΡΚ及直流準位DC送至平均及計算電路7中。 如第四圖所示,平均及計算電路7包括一產生該等 制訊號 PBHRST、RTB、PBGSEL 及 SHBc 之控=電 70,一加減法器71,三個分別與加減法器71連接之 存器72〜74’供暫存器72〜74輸入之多工器75、78, 分別與多工器75輸出端及暫存器72〜74連接之平均 路76,以及一與多工器75、78連接之除法器77。一 第四控制訊號ADCRDY藉由各個脈波p3觸發加減 器71 ’使對輸入之數位化峰值· ρκ、底值bt及直流 位DC分別進行累加,並於累加至一定次數後,將累 本紙張尺度適用中國國家標準(CNS) A4規格(210χ 297公楚) 第10頁 563122 A7 B7 五、發明說明(8^ ~ "~~ ^ 加之峰值、底值及直流準位分別暫存至暫存器72〜74 中。然後,由多工器75將累加之峰值、底值及直流準 t送至平均電路76中進行平均,且在本實施例 5 ,平均電路76是以一移位器(Shifter)來實現平均的動 作。平均峰值pk,、平均底值BT,及平均直流準位DC, 被再次回存至暫存器72〜74中,由多工器75、Μ視需 要送至除法器77及/或加減法器71中,供加減法器71 及除法器7 7應用。依據預設的控制參數計算公式,例 汝CD-R光碟機中使用之參數冷的一計算公式:点二2 10万’一1,在此定義点,= (PK,一M,)/(PK,-BT,),加減法器 71可由暫存器72〜74中取出平均峰值ρκ、平均底值μ, 及平均直流準位DC,進行加、減動作後,再經由除法器 進行除法動作,將可求得控制參數沒,。同樣地,對 於CD - RW光碟機中使用之r參數的計算公式,亦可藉由 15上述計算機制求得。而且,重要的一點是,即使習知計 算/參數/3及7的公式眾多且各不相同,但本發明之平均 及計算電路7由於是以數位方式計算,僅需改變資料的 存取流程,即可改變其計算公式及計算結果,因此可隨 計算公式的不同彈性變化其計算方法。 再參照第一圖所示,當光§己錄系統進行R 〇 p匸時, 其產生之WRF訊號被第一多工器3選擇輸出至檢測電 路4中,此時WRF訊號被分別送入類比峰值檢測器41 及取樣保持電路4 4中進行檢測。且如第一圖及第五圖 所示,首先平均及計算電路7之控制電路7〇受一外來 25之控制訊號HUT觸發,產生第一控制訊號pbhrst至 第11頁 563122 A7 B7 五、發明說明(9 ) 類比峰值檢測器4 1,令類屮你姑 7類比峰值檢測器4 1在第一控制 訊號PBHRST由高準位蠻供淮 雙低準位時重置(reset),並在低 準位區間(相當於一個 W R F %咕、ra W . w KF訊號週期)對寫入反射訊號 WRF之,例如第-個WRF訊號進行峰值檢測,藉此取 得WRF訊號的峰值A,而x 而由於在高速記錄下,一般的 類比/數位轉換電路6並無法利一個訊號的不同 準位進行取樣,因此,本發明之作法為在第一個wrf 訊號到來時僅取得峰信A,# & τ %值A然後由平均及計算裝置7產 15 生一第五控制訊號SHBC給取樣保持電路44,令取樣保 1〇持電路44對後續到來的第二個WRF訊號及第三個wrf 訊號的不同位置進行取樣,以分別取得一第二準位b及 一第三準位C,藉此輪流對WRF訊號進行取樣。如此 一來,不但不需使用到高速且昂貴的類比/數位轉換電 路,而且可準確取得WRF訊號的峰值a。同時,平均 及计算裝置7之第二控制訊?虎pBGSEL控制底值bt、 ^值ΡΚ及直流準位DC依序進到第二多工器5中,然 後:第二多工器5將峰值A、第二準位B及第三準位c(即 訊號ADCIN)依序送至類比/數位轉換電路6中。此時, 平均及計算電路7之第三控制訊號RTB .觸發類比/數位 20轉換電路6,使重置並依序將峰值A、第二準位B及第 三準位c進行數位化,並且根據其控制訊號adcrdy, 將已數位化之峰值A及第二、第三準位B、c依序送至 平均及計算電路7中,令平均及計算電路7根據數位化 之峰值A及第二、第三準位B、C產生一 r〇pc控制參 2 5數α ,且其計算方法如前述,於此不再重覆。當然,平 本紙張尺度適用中國國家標準(CNS) Α4規i(21Gx 297公楚)一 篦12百 563122 A7 ____ B7_ 五、發明說明(10 ) 均及計算電路7的計算方式可隨著控制參數α的計算 一 公式不同做彈性改變。 由上述可知,本發明之檢測電路4將檢測高頻之 RRF訊號及WRF訊號部分,交由類比峰值檢測器41、 5類比底值檢測器42及低通濾波器43來做,不但可準確 檢測RRF訊號的峰值ρκ、底值ΒΤ及直流準位DC,以 及WRF訊號WRF的峰值A,並且降低類比/數位轉換電 路6的工作速度,因此使用一般的類比/數位轉換器即 可取代特定的高速類比/數位轉換器。在計算方面藉由 10將從RRF訊號取得之峰值ρκ、底值BT、直流值DC以 及從WRF訊號取得之峰值a、第二及第三準位b、C數 位化後,再以平均及計算電路7進行數位平均及計算的 方式,可隨計算公式的不同彈性調整其計算方式,增加 控制參數α /3 7計算上的彈性,而且本發明先平均再計 15 算的方式可減少光記錄媒體上的缺陷或指紋等對計算 結果所造成的影響’並降低微控制器(micro_c〇ntr〇iier) 的工作負擔。另外,重要的一點是,本發明藉由混合類 比檢測方法及數位計算方法之最佳功率彈性控制裝置 2,將使得在光記錄系統中合併〇pc及r〇pc時更為容 20 易。 惟以上所述者,僅為本發明之較佳實施例而已,當 不能以此限疋本發明實施之範圍,即大凡依本發明申請 專利範圍及發明說明書内容所作之簡單的等效變化與 修飾,皆應仍屬本發明專利涵蓋之範圍内。 本紙張尺度適肖+ ®國家標準(CNS) A4規格(21〇χ 297公爱) 563122 A7 B7 五、發明說明(11 ) 【元件標號對照: 2 最 佳 功 率彈性控制裝置 3 第一 多 工 器 4 檢 測 電 路 5 第二 多 工 器 6 類 比 /數位轉換電路 7 平均 及 計 算 電路 41 類 比 ιΐφ- 值檢測器 42 類比 底 值 檢 測器 43 低 通 遽 波器 44 取樣 保 持 電 路 70 控 制 電 路 71 加減 法 器 72 〜74 暫存器 75 、78 多 工 器 76 平 均 電 路 77 除法 器 PBHRST第一控制訊號 RTB第三控制訊號 SHBC第五控制訊號 PK、A峰值 B第二準位 P 1、P 3脈波 α /3 7 控制參數 ADCIN、Η11Τ 控 fij 訊號 PBGSEL第二控制訊號 ADCRDY第四控制訊號 DC直流準位 BT底值 C第三準位 P2負向脈波 本紙張尺度適用中國國家標準(CNS) A4規格(210x 297公釐) 第14頁20 Refer to the first figure, which is a preferred embodiment of the optimal power elasticity control method and device of the present invention, which is applied in an optical recording system (not shown) with 0pc and ROPC at the same time. The optical recording system has a recording device and a reading device (not shown). The recording device provides a light writing signal so that a corresponding optically readable mark is formed on an optical recording medium according to the input digital data, and Generate a Write Reflect (WRF) signal. The reading device provides an optical read signal to scan the light-readable mark on the optical recording medium and generate a Read Reflect (Read Reflect, Hereinafter referred to as the RRF) signal. And the best power elastic control device 2 of this embodiment 2 includes a first multiplexer—the paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) ---- page 563122 A7 B7 V. DESCRIPTION OF THE INVENTION (ό) —. 3, Detect electricity & 4, a second multiplexer 5, an analog / digital conversion circuit 6 and an average and tamper resistance π, T different circuit 7. And this embodiment uses the above-mentioned device 2 to generate the best power control parameters as follows: * The first multiplexer 3 is a 2x1 (2 in i out) multiplexer, which inputs 5 ends for the RRF signal of the optical recording system and wrf signal input to select one of the outputs. When the optical recording system performs optimal f-rate control (0PC) before recording digital data, the RRF signal generated by it is sent to the first multiplexer 3, and the first multiplexer 3 selects and outputs it to the detection. Circuit 4. 10 The detection circuit 4 is connected to the output of the first multiplexer 3, and is used to detect the RRF Λ or WRF signal. It includes an analog peak detector 41, an analog floor detector 42, a low-pass filter 43, and a sample-and-hold circuit 44. When the optical recording system performs 0pc, the RRF signals output by the first multiplexer 3 to the detection circuit 4 are sent to the class 1 5 ratio peak detector 4 1, the analog bottom value detector 42 and the low-pass filter 43 respectively. The detection of the peak, bottom, and direct current (DC) levels during the 'as shown in the second figure' is to read the waveform of the reflection signal rrF, and the analog peak detector 41 and the analog bottom value Before the detector 4 2 performs the detection, as shown in the first and third figures, the averaging and computing device 7 will generate 20—the first control signal PBHRST, and reset the analog peak detection when its pulse wave ρ appears. The detector 41 and the analog bottom value detector 42 enable the detection to be performed again. Then the analog peak detector 41 detects the rrf signal to obtain a peak value PK, and the analog bottom value detector 42 detects the RRF signal to obtain a bottom value BT. The device 43 performs low-pass filtering on the RRF signal and outputs 25 output DC level DC, and then the averaging and calculation circuit 7 sends out a second paper size applicable to the Chinese National Standard (CNS) A4 specification (210x 297 mm). Page 9 563122 V. Description of the invention (7) Type 5 number of controller value Number 10 is controlled at the comparison value of 15, peak is controlled, 20 is the temporary power method, 25 quasi-system signal PBGSEL controls the second multiplexing ^ steal 5, makes analog peak detection 41, analog floor detector 42 and 彳 πτ ^ 夂 low-pass filter 43 The output base BT, peak PK, and DC level dc depend on who will enter the second multiplexer 5. After that, the next control signal PBHRST, the next rr, and the pulse wave P1 will be compared again. The peak and bottom detectors 4 and 42 are set to make the RRF signal re-detected. In addition, the multi-hygiene device 5 sequentially sends the bottom value M, the value pk, and the DC iM Dc (that is, the signal ADcin) to the analog / bit conversion circuit 6 in order. The computing device 7 sends a third control signal RTB to the analog / digital conversion circuit 6, and the negative pulse P2 in the third system signal RTB causes the analog / digital conversion circuit to reset before performing each analog / digital conversion ( re-, analog / digital conversion based on the sequentially received base value BT, peak PK, and DC level Dc ', and the analog / digital conversion circuit 6 digitizes the base value BT, peak PK, and DC iM DC In the process, a fourth control signal ADCRDY is generated at the same time, and the digitized bottom value BT, the value PK and the DC level DC are sequentially sent to the average and calculation circuit 7. As shown in the fourth figure, the average and calculation circuit 7 Including a control to generate these signals PBHRST, RTB, PBGSEL and SHBc = electricity 70, an adder-subtractor 71, three registers 72 ~ 74 'respectively connected to the adder-subtractor 71 for the temporary registers 72 ~ 74 input The multiplexers 75 and 78 are respectively connected to the average of the output of the multiplexer 75 and the registers 72 to 74. And a divider 77 connected to the multiplexers 75 and 78. A fourth control signal ADCRDY triggers the adder-subtractor 71 'with each pulse wave p3 to make the digitized peak of the input · ρκ, the bottom value bt and the DC bit DC respectively Accumulate, and after accumulating to a certain number of times, apply the Chinese paper standard (CNS) A4 specification (210χ 297) to the accumulated paper size Page 10 563122 A7 B7 V. Description of the invention (8 ^ ~ " ~~ ^ In addition, the peak value, the bottom value, and the DC level are temporarily stored in the temporary registers 72 to 74. Then, the multiplexer 75 sends the accumulated peak value, the bottom value, and the DC level t to the averaging circuit 76 for averaging. In the fifth embodiment, the averaging circuit 76 uses a shifter to realize the averaging operation. The average peak value pk, the average bottom value BT, and the average direct current level DC are stored in the register 72 ~ again. In 74, the multiplexer 75 and M are sent to the divider 77 and / or the adder-subtractor 71 as required for the application of the adder-subtractor 71 and the divider 7 7. According to the preset control parameter calculation formula, for example, CD -The calculation formula of the parameter cold used in -R optical disc drive: point 2 2 100'000 1 The definition point, = (PK, -M,) / (PK, -BT,), the adder-subtractor 71 can take out the average peak value ρκ, the average base value μ, and the average DC level DC from the registers 72 to 74. After the addition and subtraction operations, and then perform the division operation through the divider, the control parameters can be obtained. Similarly, for the r-parameter calculation formula used in the CD-RW disc drive, it can also be calculated by the above 15 computer Moreover, the important point is that even though the formulas of the conventional calculations / parameters / 3 and 7 are numerous and different, the averaging and calculation circuit 7 of the present invention is calculated digitally, and only needs to change the access of data Process, you can change its calculation formula and calculation results, so its calculation method can be changed with different elasticity of the calculation formula. Referring again to the first figure, when the optical § recorded system performs R oop, the generated WRF signal is selected and output to the detection circuit 4 by the first multiplexer 3, and at this time, the WRF signals are sent to the analog respectively. The peak detector 41 and the sample-and-hold circuit 44 perform detection. And as shown in the first and fifth figures, the control circuit 7 of the averaging and calculation circuit 7 is first triggered by a control signal HUT of an external 25 to generate a first control signal pbhrst to page 11 563122 A7 B7 V. Description of the invention (9) Analog peak detector 41, so that the analog peak detector 7 analog peak detector 41 is reset when the first control signal PBHRST is supplied from the high level to the double low level, and is reset at the low level. Bit interval (equivalent to a WRF%, ra W. w KF signal cycle) of the written reflection signal WRF, such as the peak detection of the first WRF signal, to obtain the peak A of the WRF signal, and x is Under high-speed recording, the general analog / digital conversion circuit 6 cannot sample at different levels of a signal. Therefore, the method of the present invention is to obtain only the peak letter A when the first wrf signal arrives. # &Amp; τ% The value A is then generated by the averaging and calculation device 7 to generate a fifth control signal SHBC to the sample-and-hold circuit 44 to cause the sample-and-hold circuit 44 to hold different positions of the second WRF signal and the third wrf signal that follow. Sampling to obtain a second Bit b and a third level C, whereby the rotation of the WRF signal is sampled. In this way, it is not only necessary to use a high-speed and expensive analog / digital conversion circuit, but also to accurately obtain the peak value a of the WRF signal. At the same time, the second control signal of the averaging and calculation device 7? Tiger pBGSEL controls the bottom value bt, ^ value PK and the DC level DC into the second multiplexer 5 in order, and then: the second multiplexer 5 sends the peak A, the second level B and the third level c (Ie, the signal ADCIN) is sequentially sent to the analog / digital conversion circuit 6. At this time, the third control signal RTB of the averaging and calculation circuit 7 triggers the analog / digital 20 conversion circuit 6 to reset and digitize the peak A, the second level B, and the third level c in sequence, and According to the control signal adcrdy, the digitized peak A and the second and third levels B and c are sequentially sent to the averaging and calculation circuit 7, so that the averaging and calculation circuit 7 is based on the digitized peak A and the second The third levels B and C generate a r0pc control parameter 25 number α, and the calculation method is as described above, and will not be repeated here. Of course, the standard paper size applies to the Chinese National Standard (CNS) A4 Regulation (21Gx 297 Gongchu) 篦 12 hundred 563122 A7 ____ B7_ V. Description of the invention (10) The calculation method of the average and calculation circuit 7 can follow the control parameters The calculation of α has different formulas to make elastic changes. From the above, it can be known that the detection circuit 4 of the present invention will detect the high-frequency RRF signal and WRF signal part, and will be performed by the analog peak detector 41, the analog bottom detector 42 and the low-pass filter 43, which can accurately detect The peak ρκ of the RRF signal, the bottom value BT and the DC level DC, and the peak A of the WRF signal WRF, and reduce the operating speed of the analog / digital conversion circuit 6, so using a general analog / digital converter can replace a specific high speed Analog / digital converter. In terms of calculation, the peak value ρκ, the bottom value BT, the DC value DC obtained from the RRF signal, and the peak values a, the second and third levels b, and C obtained from the WRF signal are digitized by 10, and then averaged and calculated. The method of digital averaging and calculation by circuit 7 can be adjusted according to the different elasticity of the calculation formula, increasing the calculation flexibility of the control parameter α / 3 7, and the method of averaging and then calculating 15 in the present invention can reduce the optical recording medium. The effect of defects or fingerprints on the calculation results' and reduce the workload of the microcontroller (micro_conntroier). In addition, an important point is that the present invention makes it easier to incorporate 0pc and r0pc in the optical recording system by using the optimal power elasticity control device 2 of the hybrid analog detection method and the digital calculation method. However, the above are only the preferred embodiments of the present invention. When it cannot be used to limit the scope of the present invention, that is, the simple equivalent changes and modifications made according to the scope of the patent application and the contents of the invention specification , All should still fall within the scope of the invention patent. This paper is in good size + ® National Standard (CNS) A4 specification (21〇χ 297 public love) 563122 A7 B7 V. Description of the invention (11) [Comparison of component numbers: 2 Best power elastic control device 3 First multiplexer 4 Detection circuit 5 Second multiplexer 6 Analog / digital conversion circuit 7 Averaging and calculation circuit 41 Analog φ-value detector 42 Analog floor detector 43 Low-pass filter 44 Sample-and-hold circuit 70 Control circuit 71 Adder-subtractor 72 ~ 74 Register 75, 78 Multiplexer 76 Average circuit 77 Divider PBHRST First control signal RTB Third control signal SHBC Fifth control signal PK, A Peak B Second level P 1, P 3 Pulse α / 3 7 Control parameters ADCIN, Η11Τ control fij signal PBGSEL second control signal ADCRDY fourth control signal DC direct current level BT bottom value C third level P2 negative pulse wave This paper size applies Chinese National Standard (CNS) A4 specifications (210x 297 mm) Page 14

Claims (1)

563122563122 六、申請專利範圍 1 · 一種最佳功率彈性抟岳丨丨祐 描…η '控制#置,應用在-光記錄系統中,用以 長:供最佳寫入光功率,嗜 先圯錄系統具有一記錄裝置及一讀 取裝—置,該記錄裝f接徂 r> ^ 1 褒置&供一先寫入訊1,使根據輸入之數位 #料在一光記錄媒縣μ犯 體上^成對應的光可讀取標記,並產生t 寫入反射訊號,該讀取贫署 ._ ^ ^ 、置提供一光璜取訊號,用以掃描光 記錄媒體上之光可讀取^西 ^ ”貢取私圮,並產生一對應之讀取反射訊 號;該最佳功率彈性控制裝置包括: 檢測電&,用卩對該寫入反射訊號及讀取反射訊號其 中之一進行檢測,以得到-第-準位、-第二準位及一第4 準位; / 一類比/數位轉換電路,與該檢測電路連接,用以對該第 一、第二及第三準位進行類比/數位轉換;及 平均及汁算電路’與該類比/數位轉換電路連接,其分 別產生一控制訊號控制該檢測電路及類比/數位轉換電路,並 且平均該數位化之第一、舍二及第三準位,以根據平均後之 第一、第二及第三準位求得一最佳功率參數。 2 ·依申請專利範圍第1項所述之最佳功率彈性控制裝置,其中該 檢測電路是一類比檢測電路,其包括一類比峰值檢測器、一 類比底值檢測器、一低通濾波器及一取樣保持電路,當諒光 記錄系統進行記錄前光功率控制(0PC)並產生該讀取反射訊 號時’該類比峰值檢測器檢測該讀取反射訊號之最高點而得 到該第一準位,該類比底值檢測器檢測該讀取反射訊號之最 低點而得到該第二準位,該低通濾波器對該讀取反射訊號進 行低通濾波取出該光讀取訊號的直流值而得到該第三準位; 本紙張尺度適用中國國家標準(CNS) A4規格(210x 297公釐) 第15頁 563122 六、申請專利範圍 A8 B8 C8 D8Sixth, the scope of patent application 1 · A kind of optimal power elasticity 丨 丨 丨 description ... η 'Control #', used in -optical recording system, long: for the best writing optical power, pre-recording system It has a recording device and a reading device. The recording device is connected to ^ 1 褒 1 褒 & for a write-in first, so that according to the input number # material in a light recording medium county μ. The corresponding optically readable mark is generated, and a t-write reflection signal is generated. The reading is provided by the bureau. _ ^ ^ Provides a light capture signal for scanning the optically readable light on the optical recording medium ^ Xi ^ "contribute private information and generate a corresponding read reflection signal; the optimal power flexibility control device includes: detection of electricity & detection of one of the written reflection signal and the read reflection signal with 卩To obtain the -first-level, -second-level and a fourth-level; / an analog / digital conversion circuit connected to the detection circuit for performing the first, second and third levels Analog / digital conversion; and the averaging and calculation circuit 'is connected to the analog / digital conversion circuit It generates a control signal to control the detection circuit and the analog / digital conversion circuit respectively, and averages the digitized first, second and third levels to obtain the first, second and third levels after averaging. An optimal power parameter is obtained. 2. The optimal power elasticity control device according to item 1 of the patent application scope, wherein the detection circuit is an analog detection circuit, which includes an analog peak detector and an analog floor detector. A low-pass filter and a sample-and-hold circuit. When the optical recording system performs optical power control (0PC) before recording and generates the read reflection signal, the analog peak detector detects the highest point of the read reflection signal. The first level is obtained, the analog bottom detector detects the lowest point of the read reflection signal to obtain the second level, and the low-pass filter performs low-pass filtering on the read reflection signal to take out the optical reading. This third level is obtained by the DC value of the signal; This paper size applies the Chinese National Standard (CNS) A4 specification (210x 297 mm) Page 15 563122 6. The scope of patent application A8 B8 C8 D8 當該光記錄系統於記錄過程中進行記錄中光功率控制(RQpC ) 並產生該寫入反射訊號時’該類比峰值檢測電路檢測該寫入 反射訊號之峰值而得到該第一準位,該取樣保持電路對該寫 I 入反射訊號中的不同訊號之不同位置進行取樣,而得到該第 二準位及第三準位,且該第二準位小於該第一準位,該第二 準位小於該第二準位。 3 ·依申請專利範圍第1項所述之最佳功率彈性控制裝置,其中該 檢測電路是一類比檢測電路,其包括一類比峰值檢測器、一 ^ 類比底值檢測器及一低通濾波器,當該光記錄系統進行記錄 前之光功率控制(OPC),並產生該讀取反射訊號時,該類比峰 值檢測器檢測該讀取反射訊號之最高點而得到該第一準位, 該類比底值檢測器檢測該讀取反射訊號之最低點而得到該第 二準位,該低通濾波器對該讀取反射訊號進行低通濾波取出 該讀取訊號的直流值而得到該第三準位。 4.依申請專利範圍第1項所述之最佳功率彈性控制裝置,其中該 檢測電路是一類比檢測電路,其包括一類比峰值檢測器及一 $ 取樣保持電路,當該光記錄系統進行記錄中之光功率控制 (ROPC),並產生該寫入反射訊號時,該峰值檢測器檢測該寫 入反射訊號之最高點而得到該第一準位,,該取樣保持電路對 該寫入反射訊號中的不同訊號之不同位置進行取樣,而得到 • 該第二準位及第三準位,且該第二準位小於該第一準位,該 第三準位小於該第二準位。 5 ·依申請專利範圍第2項所述之最佳功率彈性控制裝置,更包括 一第一多工器,其輸入端供該寫入反射訊號及讀取反射訊號 本紙張尺度適用中國國家標準(CNS) A4規格(210x 297公釐) 第16頁 563122 A8 B8 C8 D8_ 六、申請專利範圍 輸入,其輸出端則分別連接該檢測電路之類比峰值檢測器、 類比底值檢測器、低通濾波器及取樣保持電路。 6 ·依申請專利範圍第2項所述之最佳功率彈性控制裝置,更包括 一連接在該檢測電路及類比/數位轉換電路間之第二多工 器’该第一多工器之輪入端與該檢測電路之類比峰值檢測 器、類比底值檢測器、低通濾波器及取樣保持電路連接,供 該第一、第二及第三準位輸入,並根據該平均及計算電路之 一控制訊號選擇該類比峰值檢測器、類比底值檢測器、低通 濾波器及取樣保持電路其中之一,以選擇將該第一準位、;第 一準位及第二準位輪流輸出至該類比/數位轉換電路。 7 ·依申請專利範圍第2項所述之最佳功率彈性控制裝置,其中該 平均及計算電路是一數位平均及計算電路,其包括一控制電 路、一加減法器、三個暫存器、二個多工器、一平均電路及 一除法器;該控制電路用以產生不同控制訊號控制該類比峰 值檢測器、該類比底值檢測器、該取樣保持電路、該第二多 工器及該類比/數位轉換電路;該加減法器對該數位化之第 一、第二及第三準位分別進行累加;該等暫存器用以暫存該 等累加之第一、第二及第三準位;該等多工器與該等暫存器 連接,用以將該等累加之第一、第二及第三準位送至該平均 電路或除法器中進行運算;該平均電路將平均後之第一、第 二及第三準位回存至該等暫存器中,供加減法器取用以進行 加、減動作並回存,供該除法器取用並運算後產生該最佳功 率參數。 8 ·依申請專利範圍第2項所述之最佳功率彈性控制裝置,其中在 第17頁 563122 A8 D8 _ 六、申請專利範圍 光記錄系統進行記錄前光功率控制(OPC)時,該檢測電路測得 之第一、第二及第三準位分別是該讀取反射訊號之峰值、底 值及直流值’而當光記錄象統進行記錄中光功率控制(ROPC) I*時’该檢測電路測得之第一、第二及第三準位分別是該寫入 • 反射訊號之峰值、第二準位及第三準位。 9·一種最佳功率彈性控制方法,應用在一光記錄系統中,用以 &供最佳寫入光功率,該光記錄系統具有一記錄裝置及一讀 取裝置,該記錄裝置提供一光寫入訊號,使根據輸入之數位 ^ 資料在一光記錄媒體上形成對應的光可讀取標記,並產生;一 寫入反射訊號,該讀取裝置提供一光讀取訊號,用以掃描光 己錄媒體上之光可讀取標$,並產生一對應之讀取反射訊 號,該最佳功率彈性控制方法包括下列步驟: (a) 對該寫入反射訊號及讀取反射訊號其中之一進行類比檢 測,以獲得一第一準位、一第二準位及一第三準位; (b) 對該第一、第二及第三準位進行類比/數位轉換,使成為 數位化之第一、第二及第三準位; ^ (〇)對該數位化之第一、第二及第三準位進行數位平均計 算’以求得平均後之第一、第二及第三準位;及 (d)根據該平均後之第一、第二及第三準位求得一最佳功率 參數。 • 1〇·依申請專利範圍第9項所述之最佳功率彈性控制方法,在步 驟U)中,當該光記錄系統進行記錄前光功率控制(〇pc)時, 係對該讀取反射訊號進行檢測,以獲得該讀取反射訊號之第 、第一及第二準位訊號’而當該光記錄系統進行記錄中光 第18頁 563122 A8 B8 C8 _____D8_____ 六、申請專利範圍 功率控制(ROPC)時,則對該寫入反射訊號進行檢測,以獲得 該寫入反射訊號之第一、第二及第三準位訊號。 1: 1 ·依申請專利範圍第1 〇項所述之最佳功率彈性控制方法,其中 在光記錄系統進行記錄前光功率控制(〇PC)時,所測得之第 一、第二及第三準位訊號分別是該讀取反射訊號之峰值、底 值及直流值,而當光記錄系統進行記錄中光功率控制(R〇PC) 時,所測得之第一、第二及第三準位訊號分別是該寫入反射 訊號之峰值、第二準位及第三準位。 12. —種光記錄系統,包括: 一記錄裝置,提供一光寫入訊號,以根據輸入之數位資 料在一光記錄媒體上形成對應的光可讀取標記,並產生一寫 入反射訊號; 一讀取裝置,提供一光讀取訊號,用以掃描該光記錄媒 體上之光可讀取標記,並產生一對應之讀取反射訊號及;及 一最佳功率彈性控制'裝置,包括: 一檢測電路,用以對該寫入反射訊號及讀取反射訊 號其中之一進行檢測,以得到一第一準位、一第二準位 及一第三準位; 一類比/數位轉換電路,與該檢測電路連接,用以 對該第一、第二及第三準位進行類比/數位轉換;及 一平均及計算電路,與該類比/數位轉換電路連接, 其分別產生一控制訊號控制該檢測電路及類比/數位轉 換電路’並對該數位化之第一、第二及第三準位進行平 均,以根據平均後之第一準位、第二準位及第三準位求 本紙張尺度適用中國國家標準(CNS) A4規格(210x 297公釐) " '一 第19頁 563122 g!When the optical recording system performs RQpC during recording and generates the written reflection signal, the analog peak detection circuit detects the peak value of the written reflection signal to obtain the first level, the sampling The holding circuit samples the different positions of different signals in the write I reflection signal to obtain the second level and the third level, and the second level is smaller than the first level and the second level. Less than the second level. 3. The optimal power elasticity control device according to item 1 of the scope of patent application, wherein the detection circuit is an analog detection circuit, which includes an analog peak detector, an analog bottom detector, and a low-pass filter. When the optical recording system performs optical power control (OPC) before recording and generates the read reflection signal, the analog peak detector detects the highest point of the read reflection signal to obtain the first level, the analog The bottom value detector detects the lowest point of the read reflection signal to obtain the second level, and the low-pass filter performs low-pass filtering on the read reflection signal to extract the DC value of the read signal to obtain the third level. Bit. 4. The optimal power flexibility control device according to item 1 of the scope of the patent application, wherein the detection circuit is an analog detection circuit, which includes an analog peak detector and a $ sample and hold circuit. When the optical recording system performs recording In the optical power control (ROPC), and when the writing reflection signal is generated, the peak detector detects the highest point of the writing reflection signal to obtain the first level, and the sample-and-hold circuit receives the writing reflection signal. Sampling is performed at different positions of different signals in the frame to obtain the second and third levels, and the second level is smaller than the first level, and the third level is smaller than the second level. 5 · According to the optimal power elastic control device described in item 2 of the scope of the patent application, it also includes a first multiplexer whose input end is used to write the reflected signal and read the reflected signal. The paper dimensions are applicable to Chinese national standards ( CNS) A4 specification (210x 297 mm) Page 16 563122 A8 B8 C8 D8_ VI. Patent application range input, its output is connected to the analog peak detector, analog floor detector, low-pass filter of the detection circuit respectively And sample-and-hold circuits. 6. The optimal power elastic control device according to item 2 of the scope of patent application, further comprising a second multiplexer connected between the detection circuit and the analog / digital conversion circuit. The terminal is connected to the analog peak detector, the analog floor detector, the low-pass filter, and the sample-and-hold circuit of the detection circuit for the first, second, and third level inputs, and according to one of the averaging and calculation circuits The control signal selects one of the analog peak detector, the analog bottom detector, the low-pass filter, and the sample-and-hold circuit to select the first level, the first level, and the second level to be alternately output to the Analog / digital conversion circuit. 7. The optimal power elastic control device according to item 2 of the scope of the patent application, wherein the averaging and calculation circuit is a digital averaging and calculation circuit, which includes a control circuit, an addition and subtraction device, three registers, Two multiplexers, an average circuit and a divider; the control circuit is used to generate different control signals to control the analog peak detector, the analog bottom detector, the sample-and-hold circuit, the second multiplexer and the Analog / digital conversion circuit; the adder-subtractor accumulates the digitized first, second and third levels respectively; these registers are used to temporarily store the accumulated first, second and third levels The multiplexers are connected to the registers to send the accumulated first, second and third levels to the averaging circuit or divider for calculation; the averaging circuit will average the The first, second, and third levels are stored in these registers for addition and subtraction to perform addition and subtraction operations and restore, and the optimal results are obtained after the divider is taken and calculated. Power parameters. 8 · The optimal power elastic control device according to item 2 of the scope of patent application, which is on page 17 563122 A8 D8 _ VI. When the patent application optical recording system performs optical power control (OPC) before recording, the detection circuit The measured first, second, and third levels are the peak value, the bottom value, and the DC value of the read reflection signal, respectively, and when the optical recording system performs optical power control (ROPC) I * during recording, the detection The first, second, and third levels measured by the circuit are the peak, second, and third levels of the write-reflected signal, respectively. 9. An optimal power flexibility control method, applied in an optical recording system for & providing the optimal writing optical power, the optical recording system has a recording device and a reading device, and the recording device provides a light Write a signal so that a corresponding optically readable mark is formed on an optical recording medium according to the input digit ^ data, and generate; a reflective signal is written, and the reading device provides a light reading signal for scanning light The light on the recorded medium can read the mark $ and generate a corresponding read reflection signal. The optimal power flexibility control method includes the following steps: (a) one of the write reflection signal and the read reflection signal Perform analog detection to obtain a first level, a second level, and a third level; (b) perform analog / digital conversion on the first, second, and third levels to make them digital First, second, and third levels; ^ (〇) Digitally average the digitalized first, second, and third levels to obtain the averaged first, second, and third levels Digits; and (d) the first, second, and Three levels to find an optimal power parameter. • 10 · According to the optimal power elasticity control method described in item 9 of the scope of patent application, in step U), when the optical recording system performs optical power control (0pc) before recording, the reading is reflected on the reading. The signal is detected to obtain the first, first and second level signals of the read reflection signal, and when the optical recording system records the light, page 18 563122 A8 B8 C8 _____D8_____ VI. Patent Application Range Power Control (ROPC ), The writing reflection signal is detected to obtain the first, second and third level signals of the writing reflection signal. 1: 1 The optimal power elasticity control method according to Item 10 of the scope of the patent application, in which the first, second, and second measured optical power control (0PC) before the optical recording system performs recording The three-level signal is the peak value, the bottom value, and the DC value of the read reflection signal. When the optical recording system performs optical power control (ROPC) during recording, the measured first, second, and third The level signals are the peak value, the second level, and the third level of the written reflection signal, respectively. 12. An optical recording system comprising: a recording device that provides an optical writing signal to form a corresponding optically readable mark on an optical recording medium according to the input digital data, and generates a writing reflection signal; A reading device provides an optical reading signal for scanning the optically readable mark on the optical recording medium, and generates a corresponding reading reflection signal; and an optimal power flexibility control 'device, including: A detection circuit for detecting one of the write reflection signal and the read reflection signal to obtain a first level, a second level and a third level; an analog / digital conversion circuit, Connected to the detection circuit to perform analog / digital conversion on the first, second and third levels; and an averaging and calculation circuit connected to the analog / digital conversion circuit, each of which generates a control signal to control the Detection circuit and analog / digital conversion circuit 'and average the digitized first, second and third levels to find the paper based on the averaged first, second and third levels Zhang scale is applicable to China National Standard (CNS) A4 specification (210x 297 mm) " '一 page 19 563122 g! 六、申請專利範圍 得一最佳功率參數。Sixth, the scope of patent application Get an optimal power parameter. 統,其中該最佳功率 田Μ光^己錄系統進行記錄前光功率控制(〇pc)並產生該讀 ^反射訊號時,該類比峰值檢測器檢測該讀取反射訊號之最 同點而彳于到該第一準位,該底值檢測器檢測該讀取反射訊號 之最低點而得到該第二準位,該低通濾波器對該讀取反射訊 號進行攄波以取得該光讀取訊號的直流值而得到該第三麻 位’ δ ^光記錄系統進行記錄中光功率控制(R〇pC)並產生該 寫入反射訊號時,該類比峰值檢測器檢測該寫入反射訊號之 最點而得到該第一準位,該取樣保持電路對該寫入反射訊 说之不同位置進行兩次取樣,而得到該第二準位及第三準 類比檢測電路,其包括一峰值 一低逋濾波器及一取樣保持電 位’且該第二準位小於該第一準位,該第三準位小於該第二 準位。 14 ·依申請專利範圍第1 2項所述之光記錄系統,其中該最佳功率 彈性控制裝置之檢測電路為一類比檢測電路,其包括一類比 峰值檢測器、一類比底值檢測器及一低通濾波器,當該光記 錄系統進行記錄前光功率控制(0PC)並產生該讀取反射訊號 時,該類比峰值檢測器檢測該讀取反射訊號之最高點而得到 該第一準位,該類比底值檢測器檢測該讀取反射訊號之最低 點而得到該第二準位,該低通濾波器對該讀取反射訊號進行 濾波以取得該讀取訊號的直流值而得到該第三準位。 1 5 ·依申請專利範圍第1 2項所述之光記錄系統,其中該最佳功率 本紙張尺度適用中國國家標準(CNS) A4規格(210x 297公釐) 第20頁 563122 六、申請專利範圍 A8 B8 C8 D8When the optimal power field M optical recording system performs pre-recording optical power control (0pc) and generates the read reflection signal, the analog peak detector detects the most similar point of the read reflection signal. At the first level, the bottom value detector detects the lowest point of the read reflection signal to obtain the second level, and the low-pass filter oscillates the read reflection signal to obtain the optical reading. When the DC value of the signal is used to obtain the third bit δ ^ optical recording system to perform optical power control (RopC) during recording and generate the written reflection signal, the analog peak detector detects the maximum of the written reflection signal. Point to obtain the first level, the sample-and-hold circuit samples the different positions of the written reflection signal twice to obtain the second level and the third quasi-analog detection circuit, which includes a peak and a low level. A filter and a sample-and-hold potential ', the second level is smaller than the first level, and the third level is smaller than the second level. 14. The optical recording system according to item 12 of the scope of the patent application, wherein the detection circuit of the optimal power elasticity control device is an analog detection circuit, which includes an analog peak detector, an analog floor detector, and an A low-pass filter, when the optical recording system performs optical power control (0PC) before recording and generates the read reflection signal, the analog peak detector detects the highest point of the read reflection signal to obtain the first level, The analog bottom value detector detects the lowest point of the read reflection signal to obtain the second level, and the low-pass filter filters the read reflection signal to obtain the DC value of the read signal to obtain the third level. Level. 1 5 · According to the optical recording system described in Item 12 of the scope of patent application, where the optimal power of this paper size is applicable to the Chinese National Standard (CNS) A4 specification (210x 297 mm) Page 20 563122 A8 B8 C8 D8 彈性控制裝置之檢測電路為一類比檢測電路,其包括一類比 峰值檢測器及一取樣保持電路,當該光記錄系統進行記錄中 光功率控制(R0PC)並產生該寫入反射訊號時,該類比峰值檢 測器檢測該寫入反射訊號之峰值而得到該第一準位,該取樣 保持電路對該寫入反射訊號之不同位置進行兩次取樣,而得 到該第二準位及第三準位,且該第二準位小於該第一準位, 該第三準位小於該第二準位。 依申β月專利範圍第1 3項所述之光記錄系統,其中該最佳功率 彈性控制裝置更包括一第一多工器,其輸入端供該光記綠,& 統產生之寫入反射訊號及讀取反射訊號輸入,其輸出端則分 別連接該檢測電路之類比峰值檢測器、底值檢測器、低通濾 波器及取樣保持電路。 17·依申請專利範圍第13項所述之光記錄系統,其中該最佳功率 彈性控制裝置更包括一連接在該檢測電路及類比/數位轉換 電路間之第二多工器’該苐二多工器之輸入端與該類比檢測 電路之類比峰值檢測器、底值檢測器、低通濾波器及取樣保 持電路連接,供該第一、第二及第三準位輸入,並受該平均 及什算電路之一控制訊號控制,選擇該類比峰值檢測器、類 比底值檢測器、低通濾波器及取樣保持電路其中之一,以選 擇將該第一準位、第二準位或第三準位輪流輸出至該類比/數 位轉換電路。 18·依申請專利範圍第13項所述之光記錄系統,其中該最佳功率 彈性控制裝置之該平均及計算電路為一數位平均及計算電 路,其包括一控制電路、一加減法器、三個暫存器、二個多 本紙張尺度適用中國國家標準(CNS) A4規格(21〇x 297公釐) 第21頁 A8 B8 C8 D8The detection circuit of the flexible control device is an analog detection circuit, which includes an analog peak detector and a sample-and-hold circuit. When the optical recording system performs optical power control (R0PC) during recording and generates the write reflection signal, the analog The peak detector detects the peak value of the written reflection signal to obtain the first level, and the sample-and-hold circuit samples the different positions of the written reflection signal twice to obtain the second level and the third level, And the second level is smaller than the first level, and the third level is smaller than the second level. According to the optical recording system described in item 13 of the patent scope of β month, wherein the optimal power elasticity control device further includes a first multiplexer whose input terminal is for the optical recording green, & The reflection signal and the reflection signal input are input, and the output ends thereof are respectively connected to the analog peak detector, the bottom value detector, the low-pass filter and the sample-and-hold circuit of the detection circuit. 17. The optical recording system according to item 13 of the scope of the patent application, wherein the optimal power elasticity control device further includes a second multiplexer connected between the detection circuit and the analog / digital conversion circuit. The input end of the worker is connected to the analog peak detector, floor detector, low-pass filter and sample-and-hold circuit of the analog detection circuit for the first, second and third level inputs, and is subject to the average and Even one of the circuits controls the signal control, and selects one of the analog peak detector, analog bottom detector, low-pass filter, and sample-and-hold circuit to select the first level, the second level, or the third level. Levels are output in turn to this analog / digital conversion circuit. 18. The optical recording system according to item 13 of the scope of the patent application, wherein the average and calculation circuit of the optimal power elastic control device is a digital average and calculation circuit, which includes a control circuit, an adder-subtractor, three Two registers and two or more paper sizes are applicable to the Chinese National Standard (CNS) A4 specification (21 × 297 mm) Page 21 A8 B8 C8 D8 六、申請專利範圍 工益 平均電路及一除法器;該控制電路用以產生不同控 制Λ唬控制δ亥類比峰值檢測器、該類比底值檢測器、該取樣 二、夺電路β亥第一多工1及該類比/數位轉換電路;該加減法 态對該數位化之第一、第二及第三準位分別進行累加;該等 暫:态用以暫存該等累加之第-、第二及第三準位;該等多 工态與該等暫存器連接,用以將該等累加之第一、第二及第 :準位送至該平均電路或除法器中進行運算;該平均電路將 平均後之第-、第二及第三準位回存至該等暫存器中,供加 563122 =法器取用以進行加、減動作後回存,供該除法ϋ取用並:½ 算後產生該最佳功率參數。 19·依申請專利範圍第13項所述之光記錄系統,其中該最佳功率 彈性控制裝置在光記錄系統進行記錄前光功率控制(〇pc) 時,該檢測電路測得之第一、第二及第三準位分別是該讀取 反射吼號之峰值、底值及直流值,而當光記錄系統進行記錄 中光功率控制(ROPC)時,該檢測電路測得之第一、第二及第 三準位分別是該寫入反射訊號之峰值、第一準位及第二準 位。 20·—種最佳功率彈性控制裝置,應用在一光記錄系統中,用以 提供最佳寫入光功率,該光記錄系統具有一讀取裝置,該讀 取裝置在该光記錄系統進行記錄前光功率控制(〇 p C)時,提供 一光讀取訊號,用以掃描一光記錄媒體上之光可讀取標記, 並產生一對應之讀取反射訊號;該最佳功率彈性控制裝置包 括: 一檢測電路,用以對該讀取反射訊號進行檢測,以得到 本紙張尺度適用中國國家標準(CNS) A4規格(210x 297公釐) 第22頁 563122 A8 B8 C8 D8__ 六、申請專利範圍 該讀取反射訊號之一峰值、底值及直流值; 一類比/數位轉換電路,與該檢測電路連接,用以對該峰 值、底值及直流值進行類比/數位轉換;及 一平均及計算電路,與該類比/數位轉換電路連接,其分 別產生一控制訊號驅動該檢測電路及類比/數位轉換電路, 並用以平均該數位化之峰值、底值及直流值,以根據平均後 之峰值、底值及直流值求得一最佳功率參數。 2 1 ·依申請專利範圍第20項所述之最佳功率彈性控制裝置,其中 該檢測電路包括一類比峰值檢測器、一類比底值檢測器及A 低通濾波器,該類比峰值檢測器檢測該讀取反射訊號,以獲 得該讀取反射訊號之峰值;該類比底值檢測器檢測該讀取反 射訊號,以獲得該讀取反射訊號之底值;該低通濾波器對該 讀取反射訊號進行低通濾波,以獲得該讀取反射訊號之直流 值。 22·依申請專利範圍第20項所'述之最佳功率彈性控制裝置,更包 括一連接在該檢測電路及類比/數位轉換電路間之第一多工 器,該第一多工器之輸入端與該檢測電路之類比峰值檢測 器、類比底值檢測器及低通濾波器連接,供該峰值、底值及 直流值輸入,並根據該平均及計算電路之一控制訊號控制該 類比峰值檢測器、類比底值檢測器及低通濾波器其中之一, 以選擇將該峰值、底值及直流值輪流輸出至該類比/數位轉換 電路。 23·依申請專利範圍第20項所述之最佳功率彈性控制裝置,其中 該平均及計算電路是一數位平均及計算電路,其包括一控制 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 第23頁 563122 六、申請專利範圍 A8 B8 C8 D8 電路、一加減法器、三個暫存器、二第二多工器、一平均電 及除法器,該控制電路用以產生不同控制訊號控制該類 檢/則器、该類比底值檢測器、該第一多工器及該類比 二數位轉換電4 ;該加減法器對該數位化之峰值、底值及直 瓜值刀別進行累加;該等暫存器用以暫存該等累加之峰值、 底值及直流值;該等第二多工器與該等暫存器連接,用以將 荨累加之峰值、底值及直流值送至該平均電路或除法器中 進行運算;該平均電路將平均後之峰值、底值及直流值再送 入°亥等暫存器中暫存,供加減法器取用以進行加、減動作/¾灸 回存,供該除法器取用並運算後產生該最佳功率參數。 2'-種最佳功率彈性控制裝置,應用在―光記錄系統中,用以 提供最佳寫入光功率,該光記錄系統具有一記錄裝置,該記 錄裝置在該光記錄系統進行記錄中光功率控制(R〇pc)時,提 供一光寫入訊號,使根據輸入之數位資料在一光記錄媒體上 形成對應的光可讀取標記、,並產生一寫入反射訊號;該最佳 功率彈性控制裝置包括: 舞I 一檢測電路,用以對該寫入反射訊號進行檢測,以得到 该寫入反射訊號之一第一準位、一第二準位及一第三準位; 一類比/數位轉換電路,與該檢測電路連接,用以對該第 一準位、第二準位及第三準位進行類比/數位轉換;及 一平均及計算電路’與該類比/數位轉換電路連接,其分 別產生一控制訊號驅動該檢測電路及類比/數位轉換電路,並 用以平均該數位化之第一、第二及第三準位,以根據平均後 之第一、第二及第三準位求得一最佳功率參數。 本紙張尺度適用申國國家標準(CNS) A4規格(210X 297公爱) 第24頁 563122 A8 B8 C8 D8Sixth, the scope of the patent application, the industrial profit averaging circuit and a divider; the control circuit is used to generate different control δ control analog peak detectors, analog bottom detectors, the sampling two, the gain circuit β first 1 and the analog / digital conversion circuit; the addition and subtraction states accumulate the digitized first, second, and third levels respectively; the temporary: states are used to temporarily store the accumulated first-,- The second and third levels; these multi-modes are connected to these registers to send the accumulated first, second and second: levels to the averaging circuit or divider for calculation; the The averaging circuit will store the averaged-, second, and third levels into these registers for adding 563122 = the fetcher will use it to add and subtract and save it for the division and fetch And: ½ produces the optimal power parameter after calculation. 19. The optical recording system according to item 13 of the scope of the patent application, wherein when the optimum power elasticity control device performs optical power control (0pc) before recording in the optical recording system, the first, The second and third levels are the peak value, the bottom value and the DC value of the read reflection roar, respectively. When the optical recording system performs the optical power control (ROPC) during recording, the detection circuit measures the first and second values. The third and third levels are the peak value, the first level, and the second level of the written reflection signal, respectively. 20 · —A kind of optimal power elastic control device applied in an optical recording system to provide the optimal writing optical power. The optical recording system has a reading device, and the reading device performs recording in the optical recording system. In front optical power control (0 p C), an optical read signal is provided to scan a light-readable mark on an optical recording medium and generate a corresponding read reflection signal; the optimal power flexible control device Including: a detection circuit for detecting the read reflection signal to obtain the paper size applicable to the Chinese National Standard (CNS) A4 specification (210x 297 mm) Page 22 563122 A8 B8 C8 D8__ VI. Scope of patent application The reading of one of the peak value, the bottom value and the DC value of the reflected signal; an analog / digital conversion circuit connected to the detection circuit for performing analog / digital conversion on the peak value, the bottom value and the DC value; and an average and calculation A circuit connected to the analog / digital conversion circuit, which generates a control signal to drive the detection circuit and the analog / digital conversion circuit respectively, and is used to average the digitalized Value, the DC value and bottom value to the peak value of the average background value and a DC value to obtain the optimum power parameter. 2 1 · The optimal power elastic control device according to item 20 of the scope of the patent application, wherein the detection circuit includes an analog peak detector, an analog floor detector, and an A low-pass filter. The analog peak detector detects The read reflection signal to obtain the peak value of the read reflection signal; the analog floor detector detects the read reflection signal to obtain the bottom value of the read reflection signal; the low-pass filter reflects the read reflection signal The signal is low-pass filtered to obtain the DC value of the read reflected signal. 22. The optimal power flexibility control device described in item 20 of the scope of the patent application, further including a first multiplexer connected between the detection circuit and the analog / digital conversion circuit, and an input of the first multiplexer. The terminal is connected to an analog peak detector, an analog floor detector and a low-pass filter of the detection circuit for the peak, floor and DC value input, and controls the analog peak detection according to a control signal of the averaging and calculation circuit. One of the detector, the analog base value detector, and the low-pass filter, so as to select to output the peak value, the base value, and the DC value to the analog / digital conversion circuit in turn. 23. The optimal power elastic control device according to item 20 of the scope of the patent application, wherein the averaging and calculation circuit is a digital averaging and calculation circuit, which includes a control of the paper size applicable to the Chinese National Standard (CNS) A4 specification ( 210X 297 mm) Page 23 563122 6. Application scope of patent A8 B8 C8 D8 circuit, one adder-subtractor, three registers, two second multiplexers, one average power and divider, the control circuit is used to Generate different control signals to control the detector, the analog floor detector, the first multiplexer, and the analog two-digit conversion circuit4; the addition and subtraction device to the digitized peak, floor and direct value Value registers to accumulate; these registers are used to temporarily store the accumulated peak, bottom and DC values; the second multiplexer is connected to these registers to use the accumulated peak and bottom The value and DC value are sent to the averaging circuit or divider for calculation; the averaging circuit sends the averaged peak value, bottom value and DC value to temporary registers, such as ° H, for temporary storage, for addition and subtraction to take Addition and Subtraction / ¾ Moxibustion Recovery For access to the divider and generating the optimum power parameter calculation. 2'-A kind of optimal power elastic control device, which is used in ―optical recording system to provide the optimal writing optical power. The optical recording system has a recording device, and the recording device performs optical recording in the optical recording system. During power control (Ropc), an optical write signal is provided, so that a corresponding optically readable mark is formed on an optical recording medium according to the input digital data, and a write reflection signal is generated; the optimal power The elastic control device includes: a detection circuit for detecting the written reflection signal to obtain a first level, a second level, and a third level of the written reflection signal; an analogy The digital / digital conversion circuit is connected to the detection circuit for performing analog / digital conversion on the first level, the second level and the third level; and an average and calculation circuit is connected to the analog / digital conversion circuit. , Which respectively generates a control signal to drive the detection circuit and the analog / digital conversion circuit, and is used to average the digitized first, second, and third levels, so as to be based on the averaged first, second, and third levels Bit obtain an optimum power parameter. This paper size applies to the Shenyang National Standard (CNS) A4 specification (210X 297 public love) Page 24 563122 A8 B8 C8 D8 /、、申清專利範圍 25·依申請專利範圍第24項所述之最佳功率彈性控制裝置,其中 該檢測電路包括一類比峰值檢測器及一取樣保持電路,該類 比峰值檢測器檢測該寫入反射訊號,以獲得該第一準位;該 取樣保持電路對該寫入反射訊號中的不同訊號之不同位置進 行取樣,以獲得該第二準位及第三準位。 26·依申請專利範圍第24項所述之最佳功率彈性控制裝置,更包 括一連接在該檢測電路及類比/數位轉換電路間之第一多工 器,孩第一多工器之輸入端與該檢測電路之類比峰值檢測器 及取樣保持電路連接,供該第一、第二及第三準位輸入,^ 根據該平均及計算電路之一控制訊號控制該類比峰值檢測器 及取樣保持電路其中之一,以選擇將該第一、第二及第三準 位輪流輸出至該類比/數位轉換電路。 27·依申請專利範圍第24項所述之最佳功率彈性控制裝置,其中 該平均及計算電路是一數位平均及計算電路,其包括一控制 電路、一加減法器、三個暫存器、二第二多工器、一平均電 路及一除法器,該控制電路用以產生不同控制訊號控制該類 比峰值檢測器、該取樣保持電路、該第一多工器及該類比/數 位轉換電路;該加減法器對該數位化之峰值、底值及直流值 分別進行累加;該等暫存器用以暫存該等,累加之峰值、底值 及直流值;該等第二多工器與該等暫存器連接,用以將該等 累加之峰值、底值及直流值送至該平均電路或除法器中進行 平均,该平均電路將平均後之峰值、底值及直流值回存至該 荨暫存器中’供加減法器取用以進行加、減動作後回存,供 該除法器取用運算後產生該最佳功率參數。 本紙張尺度適用中國國家標準(CNS) A4規格(21〇x 297公爱) 第25頁/ 、 Declaring patent scope 25. The optimal power elasticity control device according to item 24 of the patent application scope, wherein the detection circuit includes an analog peak detector and a sample-and-hold circuit, and the analog peak detector detects the write The reflected signal is input to obtain the first level; the sample-and-hold circuit samples different positions of different signals written in the reflected signal to obtain the second level and the third level. 26. According to the optimal power elastic control device described in item 24 of the scope of the patent application, it further includes a first multiplexer connected between the detection circuit and the analog / digital conversion circuit, and the input terminal of the first multiplexer. It is connected with the analog peak detector and the sample-and-hold circuit of the detection circuit for the first, second and third level inputs, and controls the analog peak detector and the sample-and-hold circuit according to a control signal of one of the averaging and calculation circuits. One of them selects to output the first, second and third levels to the analog / digital conversion circuit in turn. 27. The optimal power elasticity control device according to item 24 of the scope of the patent application, wherein the averaging and calculation circuit is a digital averaging and calculation circuit, which includes a control circuit, an adder-subtractor, three registers, Two second multiplexers, an averaging circuit and a divider, the control circuit is used to generate different control signals to control the analog peak detector, the sample and hold circuit, the first multiplexer and the analog / digital conversion circuit; The adder-subtractor accumulates the digitized peak value, bottom value, and DC value separately; the registers are used to temporarily store the accumulated peak value, bottom value, and DC value; the second multiplexer and the And other registers are connected to send the accumulated peak value, bottom value and DC value to the averaging circuit or divider for averaging. The averaging circuit stores the averaged peak value, bottom value and DC value to the averaging circuit. In the net register, 'addition and subtraction devices are used for adding and subtracting, and then they are stored back, and the optimal power parameter is generated after the operation of the division device. This paper size applies to China National Standard (CNS) A4 (21〇x 297 public love) Page 25
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7773472B2 (en) 2006-12-05 2010-08-10 Lite-On It Corp. Method for dynamically detecting writing quality of a recordable optical disc
US9368074B2 (en) 2006-06-02 2016-06-14 Compound Photonics Ltd. Optically addressed gray scale electric charge-accumulating spatial light modulator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9368074B2 (en) 2006-06-02 2016-06-14 Compound Photonics Ltd. Optically addressed gray scale electric charge-accumulating spatial light modulator
US7773472B2 (en) 2006-12-05 2010-08-10 Lite-On It Corp. Method for dynamically detecting writing quality of a recordable optical disc

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