A Cmosonly Micro Touch Pointer

• doi: 10.1109/4.808911
• title: A CMOS-only micro touch pointer
• publisher: IEEE
• isbn:
• issn: 1558-173X
• rank: 657
• access_type: LOCKED
• content_type: Journals
• abstract: A direct-contact finger mouse realized in 0.7-/spl mu/m digital CMOS is presented. It is based on the motion detection of the fingerprint images acquired with a capacitive sensor. Stroking and tapping the chip surface with the finger causes movement of the cursor and clicking-like mouse. By properly partitioning analog collective computation and digital processing, a power consumption of about 900 /spl mu/W at 5 V is achieved. The sensor area is 3.8/spl times/3.8 mm/sup 2/, and overall chip size is 7.7/spl times/6.7 mm/sup 2/.
• article_number: 808911
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=808911
• html_url: https://ieeexplore.ieee.org/document/808911/
• abstract_url: https://ieeexplore.ieee.org/document/808911/
• publication_title: IEEE Journal of Solid-State Circuits
• conference_location:
• conference_dates:
• publication_number: 4
• is_number: 17515
• publication_year: 1999
• publication_date: Dec. 1999
• start_page: 1860
• end_page: 1868
• citing_paper_count: 3
• citing_patent_count: 8
• download_count: 252
• insert_date: 20020806
• index_terms:
  • ieee_terms:
    • Fingers
    • Intelligent sensors
    • Mice
    • CMOS image sensors
    • Fingerprint recognition
    • Optical sensors
    • Image matching
    • Capacitive sensors
    • Energy consumption
    • Image sensors
  • dynamic_index_terms:
    • Power Consumption
    • Motion Detection
    • Motion Sensors
    • Capacitive Sensor
    • Sensor Area
    • Cursor Movement
    • Cursor Motion
    • Visual Feedback
    • Video Feedback
    • Inverter
    • Binary Image
    • State Machine
    • Finite State Machine
    • Finite-state
    • Motion Patterns
    • Parasitic Capacitance
    • Finger Movements
    • Test Block
    • Waveform Generator
    • Single Chip
    • Threshold Segmentation
    • Datapath
    • Analog Circuits
    • Small Form Factor
    • University Of Bologna
    • Fingerprint Patterns
    • Weak Inverse
    • Pixel Displacement
    • Displacement Of Each Pixel
• authors:
  • Author Name: N. Manaresi
    Affiliation: D.E.I.S., University of Bologna, Bologna, Italy
    Author URL: https://ieeexplore.ieee.org/author/37327642900
    ID: 37327642900
    Order: 1
    Author Affiliations:
    • D.E.I.S., University of Bologna, Bologna, Italy
  • Author Name: R. Rambaldi
    Affiliation: D.E.I.S., University of Bologna, Bologna, Italy
    Author URL: https://ieeexplore.ieee.org/author/37354937700
    ID: 37354937700
    Order: 2
    Author Affiliations:
    • D.E.I.S., University of Bologna, Bologna, Italy
  • Author Name: M. Tartagni
    Affiliation: D.E.I.S., University of Bologna, Bologna, Italy
    Author URL: https://ieeexplore.ieee.org/author/37275653900
    ID: 37275653900
    Order: 3
    Author Affiliations:
    • D.E.I.S., University of Bologna, Bologna, Italy
  • Author Name: Z.M.K. Vajna
    Affiliation: Department of Electrical Engineering, University of Brescia, Brescia, Italy
    Author URL: https://ieeexplore.ieee.org/author/37268855200
    ID: 37268855200
    Order: 4
    Author Affiliations:
    • Department of Electrical Engineering, University of Brescia, Brescia, Italy
  • Author Name: R. Guerrieri
    Affiliation: D.E.I.S., University of Bologna, Bologna, Italy
    Author URL: https://ieeexplore.ieee.org/author/37282504400
    ID: 37282504400
    Order: 5
    Author Affiliations:
    • D.E.I.S., University of Bologna, Bologna, Italy

Image Sensor

• sensor_type: Capacitive Fingerprint Sensor
• resolution: Not specified, but maximum resolution is noted as 390 dpi and minimum theoretical is 46 dots/in.
• dynamic_range: Not specified
• pixel_size: 65 µm
• dark_current: Not specified

Optical Data

• focal_length: Not applicable (fingerprint sensor)
• aperture: Not applicable (no lenses mentioned)
• field_of_view: Not applicable
• distortion: Not applicable

Performance Metrics

• frame_rate: 15 kFrames/s
• power_consumption: 900 µW

Applications & Benefits

• cell_imaging: The system behaves like a trackball and interacts with the user as a pointing device for portable electronics.
• benefits: Low-cost monolithic standard-CMOS design with no mechanical moving parts or optical components.

Supporting Organizations

• supported_by: STMicroelectronics

Manuscript Details

• publication_date: Dec. 1999

Relevancy Score

• score: 8
• missing_fields:
  • quantum_efficiency
  • fill_factor
  • noise_sources
  • analog_to_digital_conversion_techniques
  • microlenses
  • on_chip_colour_filters
  • global_shutter
  • rolling_shutter
  • backside_illumination

Processed JSON Filename

request_516b2383-543e-4b34-9022-af0bb8a4e4f5-a_cmosonly_micro_touch_pointer.json