architectures for high dynamic range high speed image sensor readout circuits

... address range for the morphemes in the dictionary, whose ist character corresponds to the character in the 1st character register Then, set the top address for this range to the current address for ... p and Step for P r o c e d u r e are implemented in each state for (a), (b), (c), (d), (e), and so on In state (a) for Fig 4, the index memory's output expresses the address range for the morpheme ... current level Then, set the top address for this range to the current address for the character memories Step 2: While the current address is in this range, implement P r o c e d u r e Step 3:...

Ngày tải lên: 21/02/2014, 20:20

... Interestingly, cosine similarity is widely used in NLP for various applications such as clustering In this paper, we perform high speed similarity list creation for nouns collected from a huge web corpus ... different random permutation for every vector (by choosing random values for a and b, q number of times) Thus for every vector we have q different bit permutations for the original bit stream ... calculated using the traditional formula as given in equation For this base comparison system we use the one built by Pantel and Lin (2002) We perform kinds of evaluation: Performance of Locality Sensitive...

Ngày tải lên: 08/03/2014, 04:22

... where a high- speed image sensor is connected with a highperformance MCU, and another where the same sensor is 10 EURASIP Journal on Embedded Systems High performance MCU (e.g., AT91CAP7E) High- speed ... high- speed image sensors with low-performance MCU (i) The bridge hardware should operate at very high speed (over 200 MHz) so that the image pixels can be accessed in real time through high- speed ... bytes sent by the image sensor for one row, BlankB ytes/Row is the number of blank bytes sent by the image sensor for one row, TotalRow is the number of rows sent by the image sensor for one frame,...

Ngày tải lên: 21/06/2014, 07:20

... BER performance, the proposed system can be used in joint with a high- resolution imaging angle diversity receiver power uniformity of the transmitter has yet to be optimized For high performance ... than 50% for k < 2) but for configuration E that of higher-order impulses responses still can add to a significant amount (∼10% for k = 5) in the total power received Taking the Fourier transform of ... of view as well as the power receiving performance A prototype multibeam transmitter suitable for producing uniform, near hemisphere or 180 degree, high speed, and long distance infrared radiation...

Ngày tải lên: 21/06/2014, 17:20

... Hence, the former one is assumed to target high- end users willing to pay more in area and power for performance (e.g., laptops) The MMSE single-mode detector is in favor of low-end users for connectivity ... always visits the complete constellation (e.g., 16 for 16-QAM and 64 for 64-QAM), while MFCSO only visits a subset of it (e.g., for 16-QAM and 16 for 64-QAM) Note that MFCSO requires MMSE detection ... fixed complexity and parallelism for hard decision In [5], a lowcomplexity near-MAP detection method is proposed for high- order modulation (e.g., 64-QAM) The performance loss from MAP due to the...

Ngày tải lên: 21/06/2014, 17:20

... FPGA), plus ADC and highorder analog filters for the feedback plus multiple power transistors and gate drivers for multi level PWM As a result high- performance systems require high circuit complexity, ... harmonic distortion (THD) considered for High- Fidelity (Hi-Fi) is a level lower than 0.2%, the optimal target is 0.1% As discussed in [1] there are high- end products for professional applications, ... remove high frequency spurious repetitions of the baseband signal The higher the oversampling factor M is, the higher (↑ M) the PWM carrier frequency is and hence the transition bandwidth for the...

Ngày tải lên: 21/06/2014, 20:20

... significant increase of the modulation speed of VCSELs combined with the demands for power, degradation robustness and speed of next generation ultrahigh speed systems require new material and ... the basic performance at room temperature in the CW mode was significantly improved [16], high- temperature operation and high- speed modulation remained a big issue, opposite to 1300 nm -range edge-emitters ... simultaneously to a significant lateral compositional modulation and high QD density [34], resulting in a high material and modal gain For ultrahigh -speed directly modulated VCSEL applications it is extremely...

Ngày tải lên: 22/06/2014, 18:20

... conditions, TMAC provides more transmission opportunities for high- rate stations perceiving good channels This feature is important for highspeed wireless LANs and mesh networks to mitigate the severe ... mechanism [23] by utilizing RTS/CTS handshake PERFORMANCE ANALYSIS In this section, we analyze the scalable performance obtained by TMAC in high- speed wireless LANs, under various user populations ... input to derive CW in DCF MAC The distributed scheme for adjusting CW will have difficulty in providing scaling performance especially in highspeed wireless LANs First, the distributed scheme derives...

Ngày tải lên: 22/06/2014, 19:20

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Ngày tải lên: 09/09/2015, 08:12

... A LOW POWER, HIGH DYNAMIC RANGE, BROADBAND VARIABLE GAIN AMPLIFIER FOR AN ULTRA WIDEBAND RECEIVER A Thesis by LIN CHEN Submitted to the ... 2006 Major Subject: Electrical Engineering iii ABSTRACT A Low Power, High Dynamic Range, Broadband Variable Gain Amplifier for an Ultra Wideband Receiver (May 2006) Lin Chen, B.E., Tsinghua University; ... 2.18 indicates that, as AV (0) increases, the linear range drops proportionally In other words, for large variable gain range, the linear range of the multiplier-based VGA is limited (2) Power...

Ngày tải lên: 06/11/2012, 10:26

... current Japanese regulation for EIRP, (b) an attenuator used with a higher gain antenna DEVELOPMENT OF LONG -RANGE AND HIGH- SPEED WIRELESS LAN UNITS Most of the information provided in this paper ... compression rate for video signal CBR and VBR stand for constant bit rate and variable bit rate, respectively SIF stands for source input format HalfD1 stands for video size of 352 × 480 pixels for one ... uplink speed is less than about Mbps, even though downlink speed is up to 60 Mbps In providing telemedicine, uplink speeds are an important feature since high- quality still or live video images...

Ngày tải lên: 22/06/2014, 06:20

... High- Speed Dedicated Physical Control CHannel High- Speed Downlink Shared CHannel High- Speed Physical Downlink Shared CHannel High- Speed Shared Control CHannel High- Speed Downlink Packet Access High- Speed ... 25 29 30 31 31 33 Contents vi 4.3 4.4 4.5 4.6 4.7 4.2.1 High- speed downlink shared channel 4.2.2 High- speed shared control channel High- speed dedicated physical control channel 4.3.1 Fractional ... radio access has evolved strongly alongside high- speed downlink packet access (HSDPA) and high- speed uplink packet access (HSUPA), together called ‘highspeed packet access’ (HSPA) When the International...

Ngày tải lên: 01/06/2014, 09:38

... new discipline of high dynamic range imaging that combines photography and computer graphics Historically, traditional wet photography managed the recording of high dynamic range imagery through ... widely accessible For a while users were satisfied to scale and clip computed values in somewhat arbitrary ways to map the high dynamic range of computed imagery to the low dynamic range cathode ray ... be used in the same context as high dynamic range imagery? What compression techniques can be employed to deal with the increased data generated by high dynamic range imaging systems? How can...

Ngày tải lên: 05/06/2014, 11:56

... Circuit techniques for CMOS low power high performance multipliers IEEE J Solid-State Circuit 31 1996, 1535:1544 Navi K, Momeni A, Sharifi F, Keshavarzian P: Two novel ultra high speed carbon nanotube ... http://www.nanoscalereslett.com/content/6/1/519 Figure Primary schema for the proposed multi-output dynamic full adder Figure Final schema for the proposed multi-output dynamic full adder Page of Bagherizadeh and Eshghi ... Our proposed full-adder cells are in dynamic logic style There are two phases in a dynamic logic, pre-charge Table State of transistors at evaluation phase for different values of SIGMA SIGMA...

Ngày tải lên: 21/06/2014, 00:20

... performance than 2-PAM and 2-PPM, respectively With the increase of the modulation level to L = 4, PIM has a 0.8 dB better performance than 4-PAM and dB worse than 4-PPM, while for L = PIM performance ... Figure 9: Influence of code weight w on 8-PIM performance for the optimal vth = Figure 11: Influence of the number of users on 8-PIM performance for optimal vth and Eb /N0 = 15 dB Figure 10 shows ... vth on PER performance in the presence of the MUI for 8-PIM when the code weight is w = 10 and Eb /N0 = 15 dB It can be seen that for the optimal threshold vth = 6, the PER performance improves...

Ngày tải lên: 21/06/2014, 08:20