Adaptive Priority Toggle Asynchronous Tree Arbiter For Aerbased Image Sensor

• doi: 10.1109/VLSISoC.2011.6081631
• title: Adaptive priority toggle asynchronous tree arbiter for AER-based image sensor
• publisher: IEEE
• isbn: 978-1-4577-0169-6
• issn: 2324-8440
• partnum: 11EX5394
• rank: 1400
• access_type: LOCKED
• content_type: Conferences
• abstract: In this paper, we reported an adaptive priority toggle asynchronous tree arbiter for Address Event Representation (AER)-based image sensors. Simultaneous requests from event-triggered pixels, event latency, timing error and jitter are the inherent issues in AER-based read-out circuits. Fixed priority arbiter often results in unfair allocation of bus resource to only “privileged” pixels thus resulting in timing error. The proposed arbiter is able to reduce the timing error by toggling the requests priority during simultaneous requests. This also achieves the fair allocation of bus resource to all pixels. The featured eager propagation scheme allows the requests to propagate towards higher hierarchy in the tree during the arbitration process. As a result, latency and jitter problems can be reduced. Simulation result reveals that single event delay for 128-way tree arbiter is 4.2 ns and therefore, for 128 × 128 array, such arbiter can process up to 238.09M event/s which is more than 15 times faster than the speed of the reported AER sensor. The arbiter layout was realized with 2P4M 0.35µm CMOS process with a silicon area of 78 × 18µm2 and had been implemented in 80 × 80 array AER temporal contrast sensor.
• article_number: 6081631
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6081631
• html_url: https://ieeexplore.ieee.org/document/6081631/
• abstract_url: https://ieeexplore.ieee.org/document/6081631/
• publication_title: 2011 IEEE/IFIP 19th International Conference on VLSI and System-on-Chip
• conference_location: Hong Kong, China
• conference_dates: 3-5 Oct. 2011
• publication_number: 6069623
• is_number: 6081592
• publication_year: 2011
• publication_date: 3-5 Oct. 2011
• start_page: 66
• end_page: 71
• citing_paper_count: 9
• citing_patent_count: 0
• download_count: 797
• insert_date: 20111117
• index_terms:
  • ieee_terms:
    • Delay
    • Simulation
    • Logic gates
    • Arrays
    • Image sensors
    • Resource management
  • dynamic_index_terms:
    • Image Sensor
    • Camera Sensor
    • Simulation Results
    • Time Error
    • Single Delay
    • Collision
    • Tree Structure
    • Levels Of Hierarchy
    • OR Gate
    • NAND Gate
• isbn_formats:
  • format: Online ISBN, value: 978-1-4577-0169-6, isbnType: New-2005
  • format: Print ISBN, value: 978-1-4577-0171-9, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-4577-0170-2, isbnType: New-2005
• authors:
  • Author Name: Aung Myat Thu Linn
    Affiliation: VIRTUS IC Design Centre of Excellence, School of EEE, Nanyang Technological University, Singapore
    Author URL: https://ieeexplore.ieee.org/author/37087295594
    ID: 37087295594
    Order: 1
    Author Affiliations:
    • VIRTUS IC Design Centre of Excellence, School of EEE, Nanyang Technological University, Singapore
  • Author Name: Do Anh Tuan
    Affiliation: VIRTUS IC Design Centre of Excellence, School of EEE, Nanyang Technological University, Singapore
    Author URL: https://ieeexplore.ieee.org/author/37087295623
    ID: 37087295623
    Order: 2
    Author Affiliations:
    • VIRTUS IC Design Centre of Excellence, School of EEE, Nanyang Technological University, Singapore
  • Author Name: Chen Shoushun
    Affiliation: VIRTUS IC Design Centre of Excellence, School of EEE, Nanyang Technological University, Singapore
    Author URL: https://ieeexplore.ieee.org/author/37087174283
    ID: 37087174283
    Order: 3
    Author Affiliations:
    • VIRTUS IC Design Centre of Excellence, School of EEE, Nanyang Technological University, Singapore
  • Author Name: Yeo Kiat Seng
    Affiliation: VIRTUS IC Design Centre of Excellence, School of EEE, Nanyang Technological University, Singapore
    Author URL: https://ieeexplore.ieee.org/author/37087295743
    ID: 37087295743
    Order: 4
    Author Affiliations:
    • VIRTUS IC Design Centre of Excellence, School of EEE, Nanyang Technological University, Singapore

Image Sensor

• sensor_type: CMOS
• resolution: 128x128
• dynamic_range: 120 dB
• pixel_size: unknown
• dark_current: unknown

Optical Data

• focal_length: unknown
• aperture: unknown
• field_of_view: unknown
• distortion: unknown

Performance Metrics

• frame_rate: 238.09 M events/s
• signal_to_noise_ratio: unknown
• sensitivity: unknown
• shutter_speed: unknown
• power_consumption: unknown
• noise: unknown

Applications & Benefits

• cell_imaging: AER-based image sensor for high-speed motion detection and object tracking.
• benefits: Fair allocation of bus resources, reduced timing error, jitter, and latency.

Supporting Organizations

• supported_by: Nanyang Assistant Professorship, ACRF Project.

Manuscript Details

• publication_date: 3-5 Oct. 2011

Relevancy Score

• score: 10
• missing_fields:
  • pixel_size
  • dark_current
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • signal_to_noise_ratio
  • sensitivity
  • shutter_speed
  • power_consumption
  • noise

Processed JSON Filename

request_0b02471e-f230-4a41-9702-5dc3f4eb8382-adaptive_priority_toggle_asynchronous_tree_arbiter_for_aerbased_image_sensor.json