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1. 发明公开

EP1293888A2 Methods and circuitry for implementing first-in first-out structure 有权
标题翻译：的方法和电路，用于执行一个FIFO结构
公开(公告)号：EP1293888A2
公开(公告)日：2003-03-19
申请号：EP02253454.9
申请日：2002-05-15
申请人： Broadcom Corporation
发明人： Momtaz, Afshin D. , Wang, Xin , Cao, Jun , Hairapetian, Armond , Chung, David
IPC分类号： G06F5/06
CPC分类号： G06F5/10 , G06F2205/106
摘要： Methods and circuitry for implementing high speed first-in first-out (FIFO) structures. In one embodiment, a FIFO is disclosed that allows the frequency of one clock, e.g., the write clock, to be different than (e.g., half) that of the other (read) clock. In another embodiment a FIFO is presented that can be set and/or reset asynchronously. Other embodiments are disclosed wherein the read and write pointers are effectively monitored to ensure proper timing relationship, to detect loss of clock as well as to detect other abnormal FIFO conditions.

2. 发明授权

EP1300948B1 High speed peak amplitude comparator 有权
标题翻译：非常快的幅度峰值比较
公开(公告)号：EP1300948B1
公开(公告)日：2006-09-06
申请号：EP02254838.2
申请日：2002-07-10
申请人： Broadcom Corporation
发明人： Momtaz, Afshin , Hairapetian, Armond , Tan, Wee-Guan
IPC分类号： H03K5/08 , G01R19/04 , H03K5/1532
CPC分类号： H03K5/1532 , G01R19/04

3. 发明公开

EP1394947A3 Current-controlled CMOS circuit using higher voltage supply in low voltage CMOS process 有权
标题翻译：电流控制的CMOS电路，带有在CMOS工艺中产生的低电压增大的电源电压
公开(公告)号：EP1394947A3
公开(公告)日：2006-11-08
申请号：EP03019260.3
申请日：2003-08-26
申请人： Broadcom Corporation
发明人： Fujimori, Ichiro , Yin, Guangmin , Hairapetian, Armond
IPC分类号： H03K19/0944
CPC分类号： H03K3/3562 , H03K3/356043 , H03K17/693 , H03K19/09432 , H03K19/215
摘要： Various circuit techniques for implementing ultra high speed circuits use current-controlled CMOS (C 3 MOS) logic fabricated in conventional CMOS process technology. An entire family of logic elements including inverter/buffers, level shifters, NAND, NOR, XOR gates, latches, flip-flops and the like are implemented using C 3 MOS techniques. Optimum balance between power consumption and speed for each circuit application is achieve by combining high speed C 3 MOS logic with low power conventional CMOS logic. The combined C 3 MOS/CMOS logic allows greater integration of circuits such as high speed transceivers used in fiber optic communication systems. The C 3 MOS structure enables the use of a power supply voltage that may be larger than the voltage required by the CMOS fabrication process, further enhancing the performance of the circuit.

4. 发明公开

EP1261126A2 Varactor based differential VCO with switchable frequency bands 有权
标题翻译：差异分析仪Oszillator mit Varaktoren und umschaltbarenFrequenzbändern
公开(公告)号：EP1261126A2
公开(公告)日：2002-11-27
申请号：EP02252977.0
申请日：2002-04-26
申请人： Broadcom Corporation
发明人： Momtat, Afshin D. , Hairapetian, Armond
IPC分类号： H03J5/24 , H03B5/08
CPC分类号： H03J5/244 , H03J2200/10 , H03L7/099
摘要： Method and circuitry for implementing VCOs with improved frequency band switching use differentially-coupled varactors to implement the different frequency bands. According to a specific embodiment, one side of a varactor couples to the tank circuit and the other side is coupled either to ground or to the positive power supply VDD without introducing any series parasitic resistance.
摘要翻译：用于实现具有改进的频带切换的VCO的方法和电路使用差分耦合变容二极管来实现不同的频带。根据具体实施例，变容二极管的一侧耦合到储能电路，另一侧耦合到接地或正电源VDD，而不引入任何串联寄生电阻。

5. 发明公开

EP1293888A3 Methods and circuitry for implementing first-in first-out structure 有权
标题翻译： Verfahren und Schaltung zurAusführungeiner FIFO Struktur
公开(公告)号：EP1293888A3
公开(公告)日：2006-08-23
申请号：EP02253454.9
申请日：2002-05-15
申请人： Broadcom Corporation
发明人： Momtaz, Afshin D. , Wang, Xin , Cao, Jun , Hairapetian, Armond , Chung, David
IPC分类号： G06F5/06
CPC分类号： G06F5/10 , G06F2205/106
摘要： Methods and circuitry for implementing high speed first-in first-out (FIFO) structures. In one embodiment, a FIFO is disclosed that allows the frequency of one clock, e.g., the write clock, to be different than (e.g., half) that of the other (read) clock. In another embodiment a FIFO is presented that can be set and/or reset asynchronously. Other embodiments are disclosed wherein the read and write pointers are effectively monitored to ensure proper timing relationship, to detect loss of clock as well as to detect other abnormal FIFO conditions.
摘要翻译：用于实现高速先进先出（FIFO）结构的方法和电路。在一个实施例中，公开了允许一个时钟（例如写时钟）的频率与另一（读取）时钟的频率不同的（例如，一半）的FIFO。在另一个实施例中，呈现可以异步地设置和/或复位的FIFO。公开了其他实施例，其中有效地监视读取和写入指针，以确保正确的时序关系，以检测时钟损耗以及检测其他异常FIFO条件。

6. 发明公开

EP1261126A3 Varactor based differential VCO with switchable frequency bands 有权
标题翻译：用变容二极管和可切换的频带的差分电压控制振荡器
公开(公告)号：EP1261126A3
公开(公告)日：2004-07-21
申请号：EP02252977.0
申请日：2002-04-26
申请人： Broadcom Corporation
发明人： Momtat, Afshin D. , Hairapetian, Armond
IPC分类号： H03J5/24 , H03L7/099 , H03B5/12
CPC分类号： H03J5/244 , H03J2200/10 , H03L7/099
摘要： Method and circuitry for implementing VCOs with improved frequency band switching use differentially-coupled varactors to implement the different frequency bands. According to a specific embodiment, one side of a varactor couples to the tank circuit and the other side is coupled either to ground or to the positive power supply VDD without introducing any series parasitic resistance.

7. 发明公开

EP1300948A3 High speed peak amplitude comparator 有权
标题翻译：非常快的幅度峰值比较
公开(公告)号：EP1300948A3
公开(公告)日：2004-02-11
申请号：EP02254838.2
申请日：2002-07-10
申请人： Broadcom Corporation
发明人： Momtaz, Afshin , Hairapetian, Armond , Tan, Wee-Guan
IPC分类号： H03K5/08 , G01R19/04 , H03K5/1532
CPC分类号： H03K5/1532 , G01R19/04
摘要： Various methods and circuits for implementing high speed peak amplitude comparison. The invention achieves higher speed of operation by eliminating the slow feedback loop commonly employed in peak detection. In one embodiment, the invention directly compares a signal that represents the peak amplitude of the input signal minus a small voltage drop, to a modified reference voltage. The modified reference voltage corresponds to the reference voltage that is adjusted to compensate for the small voltage drop in the maximum input voltage. In another embodiment, the invention implements a differential version of the peak amplitude comparator to obtain better noise rejection and reduced effective offset among other advantages.

8. 发明公开

EP1300948A2 High speed peak amplitude comparator 有权
标题翻译： Sehr schneller Amplitudenspitzenwertvergleicher
公开(公告)号：EP1300948A2
公开(公告)日：2003-04-09
申请号：EP02254838.2
申请日：2002-07-10
申请人： Broadcom Corporation
发明人： Momtaz, Afshin , Hairapetian, Armond , Tan, Wee-Guan
IPC分类号： H03K5/08
CPC分类号： H03K5/1532 , G01R19/04
摘要： Various methods and circuits for implementing high speed peak amplitude comparison. The invention achieves higher speed of operation by eliminating the slow feedback loop commonly employed in peak detection. In one embodiment, the invention directly compares a signal that represents the peak amplitude of the input signal minus a small voltage drop, to a modified reference voltage. The modified reference voltage corresponds to the reference voltage that is adjusted to compensate for the small voltage drop in the maximum input voltage. In another embodiment, the invention implements a differential version of the peak amplitude comparator to obtain better noise rejection and reduced effective offset among other advantages.
摘要翻译：实现高速峰值幅度比较的各种方法和电路。本发明通过消除峰值检测中通常使用的慢反馈回路来实现更高的操作速度。在一个实施例中，本发明直接将表示输入信号的峰值振幅减去小电压降的信号与修改的参考电压进行比较。修改的参考电压对应于调整为补偿最大输入电压中的小电压降的参考电压。在另一个实施例中，本发明实现了峰值振幅比较器的差分版本，以获得更好的噪声抑制和降低的有效偏移等优点。

9. 发明授权

EP1293888B1 Methods and circuitry for implementing a first-in first-out structure 有权
标题翻译：的方法和电路，用于执行一个FIFO结构
公开(公告)号：EP1293888B1
公开(公告)日：2010-03-03
申请号：EP02253454.9
申请日：2002-05-15
申请人： Broadcom Corporation
发明人： Momtaz, Afshin D. , Wang, Xin , Cao, Jun , Hairapetian, Armond , Chung, David
IPC分类号： G06F5/06
CPC分类号： G06F5/10 , G06F2205/106

10. 发明授权

EP1261126B1 Varactor based differential VCO with switchable frequency bands 有权
标题翻译：用变容二极管和可切换的频带的差分电压控制振荡器
公开(公告)号：EP1261126B1
公开(公告)日：2009-07-08
申请号：EP02252977.0
申请日：2002-04-26
申请人： Broadcom Corporation
发明人： Momtat, Afshin D. , Hairapetian, Armond
IPC分类号： H03J5/24 , H03L7/099 , H03B5/12
CPC分类号： H03J5/244 , H03J2200/10 , H03L7/099

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