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Latency (engineering)

About: Latency (engineering) is a research topic. Over the lifetime, 7278 publications have been published within this topic receiving 115409 citations. The topic is also known as: lag.


Papers
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Patent
15 Dec 1997
TL;DR: In this article, the authors propose a dynamic latency module that dynamically sets a plurality of memory access latency values by determining an operating speed of the processor and implementing one of the plurality of sets of latency values based on the operating speed.
Abstract: A computer processor includes a dynamic latency module. The dynamic latency module includes a read-only memory ("ROM") in which is stored a plurality of sets of latency values. The dynamic latency module further includes a register coupled to the ROM and adapted to store at least one set of the plurality of sets of latency values. The dynamic latency module dynamically sets a plurality of memory access latency values by determining an operating speed of the processor and implementing one of the plurality of sets of latency values based on the operating speed.

33 citations

Journal ArticleDOI
TL;DR: Brainstem electric responses were obtained on a group of 70 normal hearing children, matched by age and sex, and showed that males have a longer latency than females, but when broken down into age groups, the latency of children aged 5-7 years was the same, and the latencyOf children aged 8-11 years differed.
Abstract: Brainstem electric responses were obtained on a group of 70 normal hearing children, aged 5–11 years, matched by age and sex. The recordings were examined for differences in latencies between the sexes at each age. The results showed that males have a longer latency than females, but when broken down into age groups, the latency of children aged 5–7 years was the same, and the latency of children aged 8–11 years differed. The results for latency of wave V of the whole group showed the greatest difference. The reason why such a sex difference should occur in middle childhood is discussed, but no physical cause found.

33 citations

Book ChapterDOI
09 Jul 2011
TL;DR: The goal of this study was to determine the level at which touch screen latency becomes annoying for common tablet tasks and to show levels of user ratings by latency duration.
Abstract: The goal of this study was to determine the level at which touch screen latency becomes annoying for common tablet tasks. Two types of touch screen latency were manipulated for three applications: Web page browsing, photo viewing, and ebook reading. Initial latency conditions involved an initial delay in the screen’s visual response to touch inputs but with no delay after the beginning of a touch input. Continuous latency involved continuous delay for the duration of a touch input. Both types were tested from 80 to 780 ms. Touch inputs included resizing with multitouch input, panning, scrolling, zooming, and page turning. Results showed a statistically significant main effect for application, but differences were small. Continuous and initial latency showed little difference in ratings except with ebook reading. Trend graphs show levels of user ratings by latency duration.

33 citations

Proceedings ArticleDOI
05 Oct 2014
TL;DR: A method of reducing the perceived latency of touch input by employing a model to predict touch events before the finger reaches the touch surface and a form of 'soft' feedback, as well as other uses for this prediction to improve performance, is proposed.
Abstract: A method of reducing the perceived latency of touch input by employing a model to predict touch events before the finger reaches the touch surface is proposed. A corpus of 3D finger movement data was collected, and used to develop a model capable of three granularities at different phases of movement: initial direction, final touch location, time of touchdown. The model is validated for target distances >= 25.5cm, and demonstrated to have a mean accuracy of 1.05cm 128ms before the user touches the screen. Preference study of different levels of latency reveals a strong preference for unperceived latency touchdown feedback. A form of 'soft' feedback, as well as other uses for this prediction to improve performance, is proposed.

33 citations

Journal ArticleDOI
TL;DR: To meet the needs of specific applications, either highly active long-term or regulatable transgene expression will be needed, requiring further studies in order to design the appropriate latency-based promoter systems.
Abstract: Gene therapy for diseases of the nervous system requires vectors capable of delivering the therapeutic gene into postmitotic cells in vivo. Herpes simplex virus type 1 is a neurotropic virus that naturally establishes latency in neurons of the peripheral nervous system. Replication defective HSV vectors have been developed; these are deleted for at least one essential immediate early regulatory gene, rendering the virus less cytotoxic, incapable of reactivation, but still capable of establishing latency. Foreign genes can be vigorously expressed from an HSV-based vector in a transient manner in brain and other tissues. Long-term but weak foreign gene expression may be achieved in the nervous system by exploiting the transcriptional control mechanisms of the natural viral latency active promoter. To meet the needs of specific applications, either highly active long-term or regulatable transgene expression will be needed, requiring further studies in order to design the appropriate latency-based promoter systems.

33 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20222
2021485
2020529
2019533
2018500
2017405