JPS62124576A - Output adjusting device for semiconductor laser - Google Patents
Output adjusting device for semiconductor laserInfo
- Publication number
- JPS62124576A JPS62124576A JP26376785A JP26376785A JPS62124576A JP S62124576 A JPS62124576 A JP S62124576A JP 26376785 A JP26376785 A JP 26376785A JP 26376785 A JP26376785 A JP 26376785A JP S62124576 A JPS62124576 A JP S62124576A
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- Japan
- Prior art keywords
- semiconductor laser
- value
- current
- converter
- current value
- Prior art date
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- Facsimile Image Signal Circuits (AREA)
- Semiconductor Lasers (AREA)
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】 屡−帆分互 この発明は、半導体レーザの出力調整装置に関する。[Detailed description of the invention] 屡-sail division The present invention relates to a semiconductor laser output adjustment device.
従米技生
一般に１例えば静電プリンタであるレーザプリンタ等の
光記録装置において、半導体レーザを使用するものがあ
る。2. Description of the Related Art Generally, some optical recording devices, such as electrostatic printers such as laser printers, use semiconductor lasers.
このような光記録装置においては、画像品質を良好に保
つために半導体レーザの出力（パワーｙを一定に保つ必
要がある。In such an optical recording device, it is necessary to keep the output (power y) of the semiconductor laser constant in order to maintain good image quality.
そこで、従来は半導体レーザの出力を検出して。Therefore, in the past, the output of the semiconductor laser was detected.
この検出値と予め定めた基準値と比較し、この比較結果
に応じて半導体レーザに対して供給する電流を制御する
ことによって半導体レーザの出力を調整するようにして
いる。This detected value is compared with a predetermined reference value, and the output of the semiconductor laser is adjusted by controlling the current supplied to the semiconductor laser according to the comparison result.
しかしながら、このようにして半導体、レーザの出力を
調整するのでは、半導体レーザの出力を細く調整するこ
とができないという不都合がある。However, adjusting the output of the semiconductor and laser in this manner has the disadvantage that the output of the semiconductor laser cannot be finely adjusted.
旦−カ
この発明は上記の点に鑑みてなされたものであり、ｎ単
な構成で半導体レーザの出力を細かく制御することを目
的とする。The present invention has been made in view of the above points, and it is an object of the present invention to finely control the output of a semiconductor laser with a simple configuration.
構成
この発明は上記の目的を達成するため、半導体レーザの
出力を検出し、この検出値をＡ／Ｄ変換して、このＡ／
Ｄ変換値に応じて半導体レーザに供給する電流値を決定
し、この決定された電流値に対応する電流値データをＤ
／Ａ変換して、このＤ／Ａ変換値に応じた電流を半導体
レーザに供給するようにしたものである。Structure In order to achieve the above object, the present invention detects the output of a semiconductor laser, converts this detected value into an A/D converter, and converts the detected value into an A/D converter.
The current value to be supplied to the semiconductor laser is determined according to the D conversion value, and the current value data corresponding to the determined current value is converted to D.
/A conversion, and a current corresponding to this D/A conversion value is supplied to the semiconductor laser.
以下、この発明の一実施例に基づいて具体的に説明する
。Hereinafter, a detailed explanation will be given based on one embodiment of the present invention.
第１図及び第２図は、この発明を実施した半導体レーザ
の出力調整装置を備えたレーザプリンタの一例を示す概
略構成図である。1 and 2 are schematic configuration diagrams showing an example of a laser printer equipped with a semiconductor laser output adjustment device embodying the present invention.
このレーザプリンタの動作を筒ｍに説明すると、まず、
ベースフィルム上に無機又はＮ機先導電体を形成してな
る感光体ドラム１は、図示しないメインモータによって
矢示Ｐ方向に回動し、帯゛市チャージャ２によって表面
が一様に所定の極性に帯電される。To explain the operation of this laser printer to cylinder m, first,
The photosensitive drum 1, which has an inorganic or N-organic lead conductor formed on a base film, is rotated in the direction of arrow P by a main motor (not shown), and the surface is uniformly polarized by a predetermined polarity by a battery charger 2. is charged with electricity.
一方、レーザビーム露光装置３は、第２図に示すように
レーザドライバ４で駆動されてレーザ光を発生し、この
レーザ光を入力された２値情報である記録情報によって
オン・オフ信号に変調されたレーザ光を射出するレーザ
光発生・変調部５からのレーザ光によって、モータ６に
よって回転される回転多面鏡７及びｆＯレンズ８並びに
ミラー９を介して感光体トラム１上を記録情報に応じて
ラスクスキャンする。On the other hand, the laser beam exposure device 3 is driven by a laser driver 4 to generate a laser beam, as shown in FIG. The laser beam from the laser beam generation/modulation unit 5 that emits the laser beam is transmitted onto the photoconductor tram 1 according to the recorded information via the rotating polygon mirror 7 rotated by the motor 6, the fO lens 8, and the mirror 9. and scan it.
それによって、感光体ドラム１上に記録側イｑ！に応じ
た静電潜像が形成される。As a result, the recording side Iq! is printed on the photoreceptor drum 1. An electrostatic latent image is formed according to the
この感光体トラム１上の静゛這潜作は、現像器ユニット
１１によってレーザビームが照射された部分にのみトナ
ーが付着されて顕像化される。This static latent image on the photoreceptor tram 1 is visualized by adhering toner only to the area irradiated with the laser beam by the developing unit 11.
この感光体ドラム１上のトナー像は、給紙１へレイ１２
に収納され、給紙ローラ１３及びレジストローラ１４を
介して所定のタイミングで供給される記録紙」−に、転
写チャージャ１５によって転写されろ。The toner image on the photosensitive drum 1 is transferred to the paper feed 1 by a lay 12.
The image is transferred by the transfer charger 15 onto a recording sheet stored in the recording paper and fed at a predetermined timing via the paper feed roller 13 and the registration roller 14.
そして、１ヘナー像が転写された記録紙は、分離チャー
ジャ１６によって感光体ドラム１上から分離される。Then, the recording paper onto which the 1-hener image has been transferred is separated from the photosensitive drum 1 by a separation charger 16.
このようにして転写２分離が終Ｙした感光体ドラム１は
、クリーニングユニット１７によって残留トナーを除去
され、除電ランプ１８によって残留電荷を消去されて次
の記録工程に備える。The photosensitive drum 1, which has thus completed the two-transfer separation process, has residual toner removed by the cleaning unit 17, and residual charge is erased by the static elimination lamp 18, in preparation for the next recording process.
−・方、感光体ドラｔｚ ｌから分離された記録紙は、
定着ユニット２０に送られてトナー像が定着された後、
排紙ローラ２１を介して排紙トレイ２２に排出される。- On the other hand, the recording paper separated from the photoreceptor drum tzl is
After the toner image is sent to the fixing unit 20 and fixed,
The paper is discharged onto a paper discharge tray 22 via a paper discharge roller 21 .
また、感光体ドラム１の近傍には、第２図に示すように
サーミスタからなる温度センサ２３を配設して、ｌＩＳ
光体ドラム１の表面温度を検出する。Further, a temperature sensor 23 consisting of a thermistor is disposed near the photoreceptor drum 1 as shown in FIG.
The surface temperature of the optical drum 1 is detected.
なお、温度センサとしては、この他例えば温度の変動を
電圧レベル、電流量、光ファイバの偏光角等によって検
出するものを使用してもよい。In addition, as the temperature sensor, for example, one that detects temperature fluctuation based on voltage level, current amount, polarization angle of optical fiber, etc. may be used.
第３図は、このレーザプリンタにおける半導体レーザ出
力調整装置の一例を示すブロック図である。FIG. 3 is a block diagram showing an example of a semiconductor laser output adjustment device in this laser printer.
マイクロコンピュータ（以下「マイコン」と称す）３１
は、ＣＰＵ、ＲＯＭ、ＲＡＭ及びＩｌｏ等からなり、こ
のレーザプリンタの’ＩｔＦ ＊ 、露光。Microcomputer (hereinafter referred to as "microcomputer") 31
consists of CPU, ROM, RAM, Ilo, etc., and 'ItF*, exposure of this laser printer.
現像、転写、除電等のシーケンス（画１免形成プロセス
）の制御を司る電流値決定手段を兼ねた回路であり、内
部ＲＯＭに格納したプロゲラ１１に基づいてシーケンス
制御及び半導体レーザのパワー調整に係わる制御を実行
する。This circuit also serves as a current value determining means that controls sequences such as development, transfer, and static elimination (image 1 non-forming process), and is involved in sequence control and semiconductor laser power adjustment based on the progera 11 stored in the internal ROM. Execute control.
半導体レーザ（レーザダイオード；ＬＤ）３２は、図示
しない記録情報に応じてオン・オフするＦＥＴ等によっ
て記録情報に応じて電流が供給及び遮断されて、記録情
報に応じてレーザ光を射出する。The semiconductor laser (laser diode; LD) 32 is supplied with current and cut off according to the recorded information by an FET (not shown) that is turned on and off according to the recorded information, and emits a laser beam according to the recorded information.
一方、この半導体レーザ３２の射出光を、フ第１・ダイ
オード（ＰＤ）３３で受光してこのフォトダイオード３
３に流れる電流をオペアンプかｔ゛）なる１゛ヒ流−電
圧変換回路３４によって電圧に変換（Ｉ／Ｖ）する。な
お、これ等によって検出手段を構成している。On the other hand, the emitted light from this semiconductor laser 32 is received by a first photodiode (PD) 33 and is then transmitted to the photodiode 3.
The current flowing through the circuit 3 is converted into a voltage (I/V) by a current-to-voltage conversion circuit 34 consisting of an operational amplifier (T). Note that these constitute the detection means.
そして、この変換電圧をＡ／Ｄ変換Ｆｔ３５に入力して
デジタルデータに変換し、このＡ／Ｄ変換値をデータバ
スを介してマイコン３１の所定のボートに入力している
。Then, this converted voltage is input to the A/D converter Ft35 to be converted into digital data, and this A/D converted value is input to a predetermined port of the microcomputer 31 via the data bus.
そこで、マイコン６１は、このＡ／Ｄ変換器３５からの
Ａ／Ｄ変換値に応じて半導体レーザ３２に供給する電流
量を決定して、この決定した電流値に応じてデジタルの
電流値データを所定のボートからデータバスを介してＤ
／Ａ変換器３６に出力する。Therefore, the microcomputer 61 determines the amount of current to be supplied to the semiconductor laser 32 according to the A/D converted value from the A/D converter 35, and outputs digital current value data according to the determined current value. D from a given boat via the data bus
/A converter 36.
このＤ／Ａ変換器３Ｓは、マイコン３１からの電流値デ
ータをＤ／Ａ変換してアナログデータに変換する。This D/A converter 3S performs D/A conversion on current value data from the microcomputer 31 to convert it into analog data.
そして、このＤ／Ａ変換器３６の変換値をオペアンプ３
７．可変抵抗器３８及び抵抗３Ｓからなる電流−電圧変
換回路で電圧値に変換（Ｉ／Ｖ）Ｌ、この電圧を抵抗４
０を介して！Ｖ導体レーザ３２の給電路に介挿したトラ
ンジスタ４１のベースに供給している。なお、これ等に
よって電流供給手段を構成している。Then, the conversion value of this D/A converter 36 is converted into the operational amplifier 3.
7. A current-voltage conversion circuit consisting of a variable resistor 38 and a resistor 3S converts it into a voltage value (I/V) L, and this voltage is converted to a voltage value by a resistor 4.
Via 0! It is supplied to the base of a transistor 41 inserted in the power supply path of the V-conductor laser 32. Note that these constitute a current supply means.
また、温度センサ２３と直列に抵抗４３を接続してその
接続点の電圧ＶｔをＡ／Ｄ変換器４４に入力してＡ／Ｄ
変換し、このＡ／Ｄ変換値をマイコン３１に人力してい
る。In addition, a resistor 43 is connected in series with the temperature sensor 23, and the voltage Vt at the connection point is inputted to the A/D converter 44.
This A/D converted value is manually input to the microcomputer 31.
次に、このように構成したこの実施例における半導体レ
ーザの出力調整について説明する。Next, the output adjustment of the semiconductor laser in this embodiment configured as described above will be explained.
ます、マイコン３１は決定した電流値を示す電流値デー
タをＤ／Ａ変換器３６にデータバスを介して送出するこ
とによって、その電流値データがアナログデータに変換
される。First, the microcomputer 31 sends current value data indicating the determined current value to the D/A converter 36 via the data bus, thereby converting the current value data into analog data.
そして、この電流値がオペアンプ３７等の電流−電圧変
換回路で電圧値に変換されて抵抗４０を介してトランジ
スタ４１に怪えられ、トランジスタ４１には決定された
電流値に対応するコレクタ電流が流れる。なお、利得の
調整は可変抵抗器３８によって調整することがで、きる
。Then, this current value is converted into a voltage value by a current-voltage conversion circuit such as an operational amplifier 37, which is passed through a resistor 40 to a transistor 41, and a collector current corresponding to the determined current value flows through the transistor 41. . Note that the gain can be adjusted by adjusting the variable resistor 38.
それによって、半導体レーザ３２に決定された電流値に
対応する電流値の電流が供給されて発光する。As a result, a current having a current value corresponding to the determined current value is supplied to the semiconductor laser 32, and the semiconductor laser 32 emits light.
そして、この半導体レーザ３２からの射出光がフォトダ
イオード３３で検出されて電流−電圧変換回路３４で電
圧値に変換され、この電圧値がＡ／Ｄ変換器３５でＡ／
Ｄ変換されてマイコン３１に入力される。Then, the emitted light from this semiconductor laser 32 is detected by a photodiode 33 and converted into a voltage value by a current-voltage conversion circuit 34, and this voltage value is converted into an A/D converter 35 by an A/D converter 35.
The signal is converted into D and input to the microcomputer 31.
そこで、マイコン３１はＡ／Ｄ変換器３５からのＡ／Ｄ
変換値に応じて、すなわち設定した発光量と実際の発光
量の偏差量に応じて半導体レーザ３２に供給する電流値
を決定して、この決定した電流値に対応する電流値デー
タをＤ／Ａ変換器３６に出力する。Therefore, the microcomputer 31 receives the A/D from the A/D converter 35.
The current value to be supplied to the semiconductor laser 32 is determined according to the conversion value, that is, the deviation amount between the set light emission amount and the actual light emission amount, and the current value data corresponding to this determined current value is sent to the D/A. Output to converter 36.
つまり１例えば半導体レーザ３２の発光量が設定値より
も大きいときには、フォトトランジスタ３３の受光量が
多くなって電流−電圧変換回路３４の出力が高くなり、
Ａ／Ｄ変換８（３５のＡ／Ｄ変換値が大きくなるので、
マイコン３１は電流値を小さく決定してその電流値デー
タをＤ／Ａ変換器３６に出力する。In other words, 1. For example, when the amount of light emitted by the semiconductor laser 32 is larger than the set value, the amount of light received by the phototransistor 33 increases, and the output of the current-voltage conversion circuit 34 increases.
A/D conversion 8 (Since the A/D conversion value of 35 becomes large,
The microcomputer 31 determines a small current value and outputs the current value data to the D/A converter 36.
それによって、トランジスタ４１のコレクタ電流が小さ
くなって半導体レーザ３２の発光量が減少する。As a result, the collector current of the transistor 41 decreases, and the amount of light emitted by the semiconductor laser 32 decreases.
また、逆に半導体レーザ３２の発光量が設定値よりも小
さいときには、Ａ／Ｄ変換器３５のＡ／Ｄ変換値が小さ
くなるので、マイコン３１は電流値を大きく決定してそ
の電流値データをＤ／Ａ変換器３６に出力する。Conversely, when the amount of light emitted by the semiconductor laser 32 is smaller than the set value, the A/D conversion value of the A/D converter 35 becomes smaller, so the microcomputer 31 determines a large current value and converts the current value data into Output to D/A converter 36.
それによって、１−ランジスタ４１のコレクタ電流が大
きくなって半導体レーザ３２の発光量が増加する。As a result, the collector current of the 1-transistor 41 increases, and the amount of light emitted by the semiconductor laser 32 increases.
このようにして半導体レーザ３２の発光量が所定値にな
るように半導体レーザ３２に供給する電流値を調整する
。In this way, the current value supplied to the semiconductor laser 32 is adjusted so that the amount of light emitted by the semiconductor laser 32 becomes a predetermined value.
また、マイコン３１は、半導体レーザ３２に供給する電
流値を決定する場合に、温度センサ２３の出力をＡ／Ｄ
変換するＡ／Ｄ変換器４４からのＡ／Ｄ変換値に応じて
電流値を補正する。Furthermore, when determining the current value to be supplied to the semiconductor laser 32, the microcomputer 31 converts the output of the temperature sensor 23 into an A/D converter.
The current value is corrected according to the A/D converted value from the A/D converter 44.
すなわち、レーザプリンタにおいては、感光体の温度上
昇に伴なってその表面電位が下がる傾向があるので、温
度に応じて半導体レーザ３２の発光量を制御することに
よって、すなわち温度が上昇するに従って半導体レーザ
３２の発光量を多くして表面電位の低下を抑制し、逆に
温度が下降するに従って半導体レーザ３２の発光量を少
なくして表面電位の上昇を抑制する。That is, in a laser printer, as the temperature of the photoreceptor increases, the surface potential of the photoreceptor tends to decrease. The amount of light emitted from the semiconductor laser 32 is increased to suppress a decrease in surface potential, and conversely, as the temperature decreases, the amount of light emitted from the semiconductor laser 32 is decreased to suppress a rise in surface potential.
それによって、感光体の表面電位が一定に保たれて画像
品質が一定になる。Thereby, the surface potential of the photoreceptor is kept constant and the image quality becomes constant.
このように、このレーザプリンタにおける半導体レーザ
出力調整装置においては、半導体レーザの出力を検出し
てこの検出値をＡ／Ｄ変換し、このＡ／Ｄ変換値に応じ
て半導体レーザにＩＪＩ；＃ａする電流値を決定し、こ
の決定した電流値に応じた電流値データをＤ／Ａ変換し
て、この変換値に応じた電流を半導体レーザに供給する
ようにしたので、半導体レーザの発光量の細かいデータ
が得られ、半導体レーザの出力を細やかに制御すること
ができる。In this way, the semiconductor laser output adjustment device in this laser printer detects the output of the semiconductor laser, converts this detected value into A/D, and adjusts the IJI; #a to the semiconductor laser according to this A/D converted value. The current value is determined, the current value data corresponding to the determined current value is D/A converted, and the current corresponding to this converted value is supplied to the semiconductor laser. Detailed data can be obtained and the output of the semiconductor laser can be precisely controlled.
なお、上記実施例においては、この発明をレーザプリン
タに実施した例について述べたがこれに限るものではな
い。In the above embodiment, an example in which the present invention is applied to a laser printer has been described, but the present invention is not limited to this.
効果
以上説明したように、この発明によれば、簡単な構成で
半導体レーザの出力を細やかに制御することができる。Effects As explained above, according to the present invention, the output of the semiconductor laser can be precisely controlled with a simple configuration.
第１図及び第２図はこの発明を実施した半導体レーザ出
力調整装置を備えたレーザプリンタの一例を示す概略構
成図。
第３図はその半導体レーザ出力調整装置の一例を示すブ
ロック図である。
′５１・・・マイクロコンピュータ
３２・・・半導体レーザ ３３・・・フォトダイオード
３５・・・Ａ／Ｄ変換器 ３６・・・Ｄ／Ａ変換器同
同 稲 元 富 保 「＝１′。
１：・・−゛
Ｉ−二
第１図
第２図1 and 2 are schematic configuration diagrams showing an example of a laser printer equipped with a semiconductor laser output adjustment device embodying the present invention. FIG. 3 is a block diagram showing an example of the semiconductor laser output adjustment device. '51...Microcomputer 32...Semiconductor laser 33...Photodiode 35...A/D converter 36...D/A converter
Same Tomiyasu Inamoto "=1'. 1:...-゛I-2 Figure 1 Figure 2
Claims (1)
手段の検出値をＡ／Ｄ変換するＡ／Ｄ変換器と、該Ａ／
Ｄ変換器の変換値に応じて前記半導体レーザに供給する
電流値を決定する発光量決定手段と、該発光量決定手段
から出力される電流値データをＤ／Ａ変換するＤ／Ａ変
換器と、該Ｄ／Ａ変換器の変換値に応じた電流を前記半
導体レーザに供給する電流供給手段とからなることを特
徴とする半導体レーザの出力調整装置。1 A detection means for detecting the output of a semiconductor laser, an A/D converter for A/D converting the detected value of the detection means, and an A/D converter for A/D converting the detected value of the detection means;
A light emission amount determining means for determining a current value to be supplied to the semiconductor laser according to a conversion value of a D converter; and a D/A converter for D/A converting the current value data output from the light emission amount determining means. , current supply means for supplying a current to the semiconductor laser according to a conversion value of the D/A converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26376785A JPS62124576A (en) | 1985-11-26 | 1985-11-26 | Output adjusting device for semiconductor laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26376785A JPS62124576A (en) | 1985-11-26 | 1985-11-26 | Output adjusting device for semiconductor laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62124576A true JPS62124576A (en) | 1987-06-05 |
Family
ID=17393996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26376785A Pending JPS62124576A (en) | 1985-11-26 | 1985-11-26 | Output adjusting device for semiconductor laser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62124576A (en) |
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| JPH01102980A (en) * | 1987-10-16 | 1989-04-20 | Fuji Photo Film Co Ltd | Semiconductor laser controller |
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1985
- 1985-11-26 JP JP26376785A patent/JPS62124576A/en active Pending
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| US7346278B2 (en) | 2001-02-05 | 2008-03-18 | Finisar Corporation | Analog to digital signal conditioning in optoelectronic transceivers |
| US7050720B2 (en) | 2001-02-05 | 2006-05-23 | Finisar Corporation | Integrated memory mapped controller circuit for fiber optics transceiver |
| US7058310B2 (en) | 2001-02-05 | 2006-06-06 | Finisar Corporation | System and method for protecting eye safety during operation of a fiber optic transceiver |
| US7079775B2 (en) | 2001-02-05 | 2006-07-18 | Finisar Corporation | Integrated memory mapped controller circuit for fiber optics transceiver |
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| US7302186B2 (en) | 2001-02-05 | 2007-11-27 | Finisar Corporation | Optical transceiver and host adapter with memory mapped monitoring circuitry |
| US6941077B2 (en) | 2001-02-05 | 2005-09-06 | Finisar Corporation | Memory mapped monitoring circuitry for optoelectronic device |
| US10291324B2 (en) | 2001-02-05 | 2019-05-14 | Finisar Corporation | Method of monitoring an optoelectronic transceiver with multiple flag values for a respective operating condition |
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| US6952531B2 (en) | 2001-02-05 | 2005-10-04 | Finistar Corporation | System and method for protecting eye safety during operation of a fiber optic transceiver |
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| US7664401B2 (en) | 2002-06-25 | 2010-02-16 | Finisar Corporation | Apparatus, system and methods for modifying operating characteristics of optoelectronic devices |
| US7317743B2 (en) | 2002-11-08 | 2008-01-08 | Finisar Corporation | Temperature and jitter compensation controller circuit and method for fiber optics device |
| US7230961B2 (en) | 2002-11-08 | 2007-06-12 | Finisar Corporation | Temperature and jitter compensation controller circuit and method for fiber optics device |
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| US7504610B2 (en) | 2004-09-03 | 2009-03-17 | Mindspeed Technologies, Inc. | Optical modulation amplitude compensation system having a laser driver with modulation control signals |
| US8076626B2 (en) | 2007-03-05 | 2011-12-13 | Ricoh Company, Ltd. | Light amount control, optical writing, and image forming apparatuses having a plurality of drive-current setting units |
| EP1967371A1 (en) | 2007-03-05 | 2008-09-10 | Ricoh Company, Ltd. | Light amount control, optical writing, and image forming apparatuses |
| US10263573B2 (en) | 2016-08-30 | 2019-04-16 | Macom Technology Solutions Holdings, Inc. | Driver with distributed architecture |
| US11438064B2 (en) | 2020-01-10 | 2022-09-06 | Macom Technology Solutions Holdings, Inc. | Optimal equalization partitioning |
| US11575437B2 (en) | 2020-01-10 | 2023-02-07 | Macom Technology Solutions Holdings, Inc. | Optimal equalization partitioning |
| US11616529B2 (en) | 2021-02-12 | 2023-03-28 | Macom Technology Solutions Holdings, Inc. | Adaptive cable equalizer |
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