The market is still fragmented on what needs to be secured and which technology should be used to secure them. For instance, to secure the signaling streams, IPSec and SSL/TLS are commonly used. SIP specifies the use of SSL/TLS, while IMS specifies IPSec (with SSL also permitted). Media streams can be secured using IPSec, SSL/TLS, DTLS, or SRTP. There are cases where one might have advantages over others, but there is no clear best choice.”

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SpotSee

Xceive’s single-chip RF receivers include:

Proven off-the-shelf software, support for customization and the ability to create codecs directly–all of these give video OEMs maximum flexibility, allowing them to differentiate their products at the system level, signal-processing level or both. Developers also have flexibility in choosing tools.

After the initial place and route of the FPGA is complete, a timing report provides delay information details of each timing path for the data bus. If necessary, the FPGA development system can be configured to report delay paths associated with specific signals of interest, and TimingDesigner can extract that information and utilize it for diagram updates. In this design example, we need to report the timing paths of our input data bus and its associated clocking signal.

surge protection diode

Proven off-the-shelf software, support for customization and the ability to create codecs directly–all of these give video OEMs maximum flexibility, allowing them to differentiate their products at the system level, signal-processing level or both. Developers also have flexibility in choosing tools.

After the initial place and route of the FPGA is complete, a timing report provides delay information details of each timing path for the data bus. If necessary, the FPGA development system can be configured to report delay paths associated with specific signals of interest, and TimingDesigner can extract that information and utilize it for diagram updates. In this design example, we need to report the timing paths of our input data bus and its associated clocking signal.

For constant current circuits like the two shown in Figure 4, output voltage can be estimated as VO = VFB + VF. To calculate the ripple current that flows through the LED and RFB in Figure 4a the impedance of both LED and output capacitor branches are estimated and shown in Figure 5. This circuit can use lower inductance while relying upon the low AC impedance of CO to filter the majority of the ripple current.

An application-optimized search solution To accommodate the needs of today's network equipment designers, the next-generation NSE must offer an optimized search solution for specific customer applications. In a broad sense, NSEs are traditionally used to support two types of lookups: policy and forwarding. Policy lookups, such as those used to support access control lists or QoS, require wildcard searches. Because of their ternary nature, traditional TCAM search engines are the most optimal solution for performing wildcard searches and policy look-ups. In contrast, L2-L3 forwarding lookups require exact match and prefix match searches, which do not require the advanced search capabilities of a TCAM-based NSE.

<> Youhao Xi is a Principal Applications Engineer at the Power Management Group, National Semiconductor Phoenix Design Center. From September 1999 to May 2005 he was a Member of Technical Staff at EMS Technologies Canada Ltd, Montreal, Canada, where he was engaged in designing the state-of-the-art power supply modules for advanced space and satellite applications. He has published 20 technical papers in the area of power electronics. Youhao Xi received the M. Appl. Sci. and PhD degree in electrical engineering from Concordia University, Montreal, Canada, in 1997 and 2003, respectively. He can be reached at:

RWR84S12R1FRRSL_Datasheet PDF

After the initial place and route of the FPGA is complete, a timing report provides delay information details of each timing path for the data bus. If necessary, the FPGA development system can be configured to report delay paths associated with specific signals of interest, and TimingDesigner can extract that information and utilize it for diagram updates. In this design example, we need to report the timing paths of our input data bus and its associated clocking signal.

For constant current circuits like the two shown in Figure 4, output voltage can be estimated as VO = VFB + VF. To calculate the ripple current that flows through the LED and RFB in Figure 4a the impedance of both LED and output capacitor branches are estimated and shown in Figure 5. This circuit can use lower inductance while relying upon the low AC impedance of CO to filter the majority of the ripple current.

An application-optimized search solution To accommodate the needs of today's network equipment designers, the next-generation NSE must offer an optimized search solution for specific customer applications. In a broad sense, NSEs are traditionally used to support two types of lookups: policy and forwarding. Policy lookups, such as those used to support access control lists or QoS, require wildcard searches. Because of their ternary nature, traditional TCAM search engines are the most optimal solution for performing wildcard searches and policy look-ups. In contrast, L2-L3 forwarding lookups require exact match and prefix match searches, which do not require the advanced search capabilities of a TCAM-based NSE.

For constant current circuits like the two shown in Figure 4, output voltage can be estimated as VO = VFB + VF. To calculate the ripple current that flows through the LED and RFB in Figure 4a the impedance of both LED and output capacitor branches are estimated and shown in Figure 5. This circuit can use lower inductance while relying upon the low AC impedance of CO to filter the majority of the ripple current.

An application-optimized search solution To accommodate the needs of today's network equipment designers, the next-generation NSE must offer an optimized search solution for specific customer applications. In a broad sense, NSEs are traditionally used to support two types of lookups: policy and forwarding. Policy lookups, such as those used to support access control lists or QoS, require wildcard searches. Because of their ternary nature, traditional TCAM search engines are the most optimal solution for performing wildcard searches and policy look-ups. In contrast, L2-L3 forwarding lookups require exact match and prefix match searches, which do not require the advanced search capabilities of a TCAM-based NSE.

shaffner

For constant current circuits like the two shown in Figure 4, output voltage can be estimated as VO = VFB + VF. To calculate the ripple current that flows through the LED and RFB in Figure 4a the impedance of both LED and output capacitor branches are estimated and shown in Figure 5. This circuit can use lower inductance while relying upon the low AC impedance of CO to filter the majority of the ripple current.

An application-optimized search solution To accommodate the needs of today's network equipment designers, the next-generation NSE must offer an optimized search solution for specific customer applications. In a broad sense, NSEs are traditionally used to support two types of lookups: policy and forwarding. Policy lookups, such as those used to support access control lists or QoS, require wildcard searches. Because of their ternary nature, traditional TCAM search engines are the most optimal solution for performing wildcard searches and policy look-ups. In contrast, L2-L3 forwarding lookups require exact match and prefix match searches, which do not require the advanced search capabilities of a TCAM-based NSE.

An application-optimized search solution To accommodate the needs of today's network equipment designers, the next-generation NSE must offer an optimized search solution for specific customer applications. In a broad sense, NSEs are traditionally used to support two types of lookups: policy and forwarding. Policy lookups, such as those used to support access control lists or QoS, require wildcard searches. Because of their ternary nature, traditional TCAM search engines are the most optimal solution for performing wildcard searches and policy look-ups. In contrast, L2-L3 forwarding lookups require exact match and prefix match searches, which do not require the advanced search capabilities of a TCAM-based NSE.

<> Youhao Xi is a Principal Applications Engineer at the Power Management Group, National Semiconductor Phoenix Design Center. From September 1999 to May 2005 he was a Member of Technical Staff at EMS Technologies Canada Ltd, Montreal, Canada, where he was engaged in designing the state-of-the-art power supply modules for advanced space and satellite applications. He has published 20 technical papers in the area of power electronics. Youhao Xi received the M. Appl. Sci. and PhD degree in electrical engineering from Concordia University, Montreal, Canada, in 1997 and 2003, respectively. He can be reached at:

Karen Parnell is Product Marketing Manager for Wireless Audio Products at CSR, www.csr.com, with specific responsibility for Bluetooth Headsets. Prior to joining CSR in 2005, she worked at Xilinx Inc. for 5 years, British Aerospace for 13 years and held field applications positions at Philips Semiconductor & Avnet. Parnell holds a BEng (Hons) in Electrical and Electronic Engineering from the University of Hertfordshire and an MBA from Aston Business School. You can reach Karen at karen.parnell@csr.com

The challenges that face designers in a mature market are now widely being recognised by both the Bluetooth SIG and individual companies involved in wireless connectivity. Companies are starting to incorporate all the necessary hardware, software, design notes, and support for advanced Bluetooth headset design allowing designers to concentrate on customising new products and getting them to market in the quickest time possible. One such rapid design approach has come from Cambridge, UK-based wireless connectivity provider, CSR. CSR’s BlueVOX1 solution allows customers to create a high-performance, low cost Bluetooth mono headset in as little as 60 minutes by meeting the cost, quality, time and technological requirements of headset designers.