초록 ▼

A programmable timing generator for a digital imaging system has a first clock generator and a second clock generator. The first clock generator includes a programmable microsequencer and generates a plurality of first clock signals in response to the microsequencer. The second programmable clock ge

A programmable timing generator for a digital imaging system has a first clock generator and a second clock generator. The first clock generator includes a programmable microsequencer and generates a plurality of first clock signals in response to the microsequencer. The second programmable clock generator is responsive to the microsequencer and generates second clock signals. The first clock signals have a lower frequency than the second clock signals. In a typical implementation, the second clock signals are called horizontal clock signals, which are used for clocking rows of pixel data out of a digital image sensor, while the first clock signals are called vertical clock signals that are used for shifting pixel data one position in vertical shift registers in the digital image sensor. The horizontal or vertical clock signals can also be used to control the image capture operation of the digital sensor, with the programmable microsequencer being used to control the image capture exposure time.

대표청구항 ▼

A programmable timing generator for a digital imaging system has a first clock generator and a second clock generator. The first clock generator includes a programmable microsequencer and generates a plurality of first clock signals in response to the microsequencer. The second programmable clock ge

A programmable timing generator for a digital imaging system has a first clock generator and a second clock generator. The first clock generator includes a programmable microsequencer and generates a plurality of first clock signals in response to the microsequencer. The second programmable clock generator is responsive to the microsequencer and generates second clock signals. The first clock signals have a lower frequency than the second clock signals. In a typical implementation, the second clock signals are called horizontal clock signals, which are used for clocking rows of pixel data out of a digital image sensor, while the first clock signals are called vertical clock signals that are used for shifting pixel data one position in vertical shift registers in the digital image sensor. The horizontal or vertical clock signals can also be used to control the image capture operation of the digital sensor, with the programmable microsequencer being used to control the image capture exposure time. the drive is a motor that rotates a gear, said gear being engaged with a first rack connected to the first sliding member and a second rack connected to the second sliding member. 8. The door entry system according to claim 1, wherein the drive is a motor that rotates a cam member, said cam member alternately engaging with a first cam surface on the first sliding member and a second cam surface on the second sliding member to thereby effect movement of the same. 9. The door entry system according to claim 1, wherein the opening is arranged to receive a spring latch bolt when the second sliding member is removed therefrom. 10. The door entry system according to claim 1, wherein the opening is arranged to receive a dead latch bolt when the first sliding member is removed therefrom. 11. A door entry system comprising: a first member movable between an engaged position and a disengaged position such that, in its engaged position, an end of the first member is positioned in an opening, and in its disengaged position, the end of the first member is positioned out of the opening; a second member movable between an engaged position and a disengaged position such that, in its engaged position, an end of the second member is positioned in the opening, and in its disengaged position, the end of the second member is positioned out of the opening; and, a selectively activated drive which effects movement of the first and second members, said first and second members moving to opposite engaged and disengaged positions with each activation of the drive. 12. The door entry system according to claim 11, wherein the end of the second member has a cross-section that spans substantially an entire dimension of the opening. 13. The door entry system according to claim 12, wherein the dimension is the opening's width, said width being measured along a direction normal to an axis about which a door associated with the door entry system swings. 14. The door entry system according to claim 11, wherein the ends of the first and second members have cross-sections that combined substantially match an entire cross-section of the opening. 15. The door entry system according to claim 11, wherein said drive simultaneously moves the first and second members. 16. The door entry system according to claim 15, wherein the drive is a motor that rotates a gear, said gear being engaged with a first rack connected to the first member and a second rack connected to the second member such that rotation of the gear slides the first and second members in opposite directions. 17. The door entry system according to claim 11, wherein the drive is a motor that rotates a cam member, said cam member engaging with a first cam surface on the first member and a second cam surface on the second member to thereby move the same. 18. The door entry system according to claim 17, wherein as the cam member is rotated it alternately engages with the first and second cam surfaces one at a time such that one of the first and second members corresponding to the cam surface engaged by the cam member is moved in a first direction, and the other of the first and second members corresponding to the cam surface not engaged by the cam member is freed to move in a second direction opposite the first direction. 19. A door entry system according to claim 11, further comprising: control means for controlling operation of the door entry system; and, a deadbolt assembly including: a deadbolt member movable between an extended and retracted position; and, a deadbolt drive which moves the deadbolt member between the extended and retracted positions. 20. A door entry system according to claim 19, wherein said control means selectively causes said deadbolt member to move into its extended position, and said first member to move into its engaged position to put an associated door in a locked condition. 21. A door entry system according to claim 19, wherein said control means selectively cau ses said deadbolt member to move into its retracted position and said second member to move into its engaged position to put an associated door in an unlocked condition. 22. A door entry system according to claim 19, further comprising: a first housing means which houses the first and second members and the drive therefor, wherein said first housing means includes a first electrical interface means. 23. A door entry system according to claim 19, wherein said control means includes: transmitter means for transmitting control signals; receiver means for receiving said control signals and operating said door entry system in accordance with said control signals. 24. A door entry system according to claim 19, wherein said deadbolt member includes a switch means, said switch means conveying a signal to said control means to effect movement of said deadbolt member to a retracted position when said switch means is activated. 25. A door entry system according to claim 24, wherein said control means effects movement of said first member to a disengaged position and said second member to an engaged position in response to receipt of said signal. 26. A door entry system according to claims 24, wherein said system further comprises a deadbolt bolt lever body housing means dimensioned to receive said deadbolt member. 27. A door entry system according to claim 26, wherein said deadbolt bolt lever body housing means includes a bolt section movable between an extended and a retracted position, wherein said bolt section engages with said switch means in the extended position to activate said switch means. 28. A door entry system according to claim 22, further comprising: a second housing means which houses the deadbolt assembly, wherein said second housing means includes a second electrical interface means. 29. A door entry system according to claim 28, wherein the first and second housing means are joined together such that said first electrical interface means is connected with said second electrical interface means to provide an electrically conductive path therebetween. 30. A door entry system according to claim 28, further comprising: connection means, said connection means including a cable having connectors at both ends thereof, said connectors being connected to the first and second electrical interface means to thereby provide an electrically conductive path between the first and second housing means. 31. A door entry system according to claim 28, wherein said second housing means is locatable at a selectable offset distance from said first housing means. 32. A door entry system according to claim 28, wherein said system further comprises a portable energy unit, said portable energy unit comprising: battery means for providing an electrical power supply; and third housing means for housing said battery means. 33. A door entry system according to claim 32, wherein said third housing means includes a third electrical interface means for om said procedure is to be performed; and a memory in said signal transmission unit for storing data pertaining to the user to be automatically downloaded for verifying the accuracy of the procedure to be performed on the user by comparison of the downloaded data with records of the health care facility after the user is identified as the patient, said memory being adapted to store updated data reflecting said procedure to replace at least some of the data previously stored therein, to conform to updated records of the health care facility. 2. The system of claim 1, wherein said signal transmission unit is embodied in an article of jewelry. 3. The system of claim 2, wherein said article of jewelry is a wristwatch. 4. The system of claim 1, wherein said signal transmission unit is embodied in an article is an aid to one of the human senses of the wearer. 5. The system of claim 1, wherein said signal transmission unit is adapted to be implanted in the body of the wearer. 6. The system of claim 1, wherein said signal transmission unit includes means for automatically activating and deactivating the signal transmission unit. 7. The system of claim 6, wherein said means for automatically activating and deactivating said signal transmission unit includes an activity sensor for activation upon detection of movement of the user and for deactivation to a sleep mode upon detection of a lack of movement of the user over a threshold interval of time. 8. The system of claim 6, wherein said means for automatically activating and deactivating said signal transmission unit includes means for detecting when the body of the user is positioned to provide said transmission link for the signal to said recognition system. 9. The system of claim 8, wherein said detecting means includes means for sensing a predetermined change in electrical impedance of said communication link indicative of establishment of an electrical connection with respect to said recognition system, for initiating activation of said signal transmission unit. 10. The system of claim 8, wherein said detecting means includes means for sensing a predetermined change in electrical impedance of said communication link indicative of termination of an electrical connection with respect to said recognition system, for initiating deactivation of said signal transmission unit. 11. The system of claim 6, wherein said means for automatically activating and deactivating said signal transmission unit includes means for deactivating said signal transmission unit upon passage of a predetermined time interval following activation of said signal transmission unit. 12. A method for automatically verifying a procedure to be performed on a patient in a health care facility by recognizing the identity of a user as the patient on whom the procedure is to be performed, said method comprising the steps of providing an electrical signal transmission unit to be worn on the body of the user for generating a signal to be transmitted through a communication link created by the natural electrical conductivity of the body; encoding the generated signal so as to identify a selected unique descriptor of the user; providing an identity recognition system responsive to touching by the user to elicit reception of the encoded generated signal transmitted via the user's body for evaluation of said selected unique descriptor to positively identify the user as the patient on whom said procedure is to be performed, and, upon such identification, automatically downloading stored data from memory in the signal transmission unit to verify the accuracy of the procedure to be performed on the identified patient by comparison of the downloaded data with records of the health care facility; and thereafter loading updated data in connection with said procedure into said memory to replace at least some of the previously stored data therein to conform to updated records of the health care facility.