Abstract: A transmitter circuit coupled to a receiver circuit through wiring. The transmitter circuit transmits, as an input signal, either a first signal of a rectangular waveform having a logic level that changes according to first data, or a second signal having a slope that changes corresponding to second data. The receiver circuit includes an analog-to-digital (AD) converter receiving the input signal through the wiring, and a processing circuit configured to process an output of the AD converter, to thereby determine whether the input signal is the first signal or the second signal, and upon determining that the input signal is the first signal or a second signal, acquire the first data or the second data based on the logic level of the first signal or the slope of the second signal, as the case may be.

Abstract: A receiving apparatus is provided, including: a receiving unit to receive a plurality of pulses including a synchronization pulse and a data pulse having a data pulse width corresponding to a data value; a searching unit to search for pulse information indicating a pulse period or the like that falls within a synchronization pulse acceptable range from among pulse information indicating pulse periods or pulse widths of the respective pulses; a detecting unit to detect whether pulse information of a second pulse at a predetermined location relative to a first pulse corresponding to the searched pulse information indicates a pulse period or the like that falls within a data pulse acceptable range; an identifying unit to identify the first pulse as the synchronization pulse on condition that the pulse information of the second pulse indicates a pulse period or the like that falls within the data pulse acceptable range.

Abstract: To detect an error in pulse width in a communication scheme that identifies a start position of a message or expresses a data value using a pulse width of a pulse included in the message, provided is a receiving apparatus including a receiving section that receives a message including a synchronization pulse having a predetermined pulse width and a first data pulse having a pulse width corresponding to a value of first data; and an error detecting section that detects an error in response to the number of non-synchronization pulses that are consecutive after the synchronization pulse being outside a predetermined number range.

Abstract: A receiving apparatus is provided, including: a receiving unit to receive a plurality of pulses including a synchronization pulse and a data pulse having a data pulse width corresponding to a data value; a searching unit to search for pulse information indicating a pulse period or the like that falls within a synchronization pulse acceptable range from among pulse information indicating pulse periods or pulse widths of the respective pulses; a detecting unit to detect whether pulse information of a second pulse at a predetermined location relative to a first pulse corresponding to the searched pulse information indicates a pulse period or the like that falls within a data pulse acceptable range; an identifying unit to identify the first pulse as the synchronization pulse on condition that the pulse information of the second pulse indicates a pulse period or the like that falls within the data pulse acceptable range.

Abstract: To detect an error in pulse width in a communication scheme that identifies a start position of a message or expresses a data value using a pulse width of a pulse included in the message, provided is a receiving apparatus including a receiving section that receives a message including a synchronization pulse having a predetermined pulse width and a first data pulse having a pulse width corresponding to a value of first data; and an error detecting section that detects an error in response to the number of non-synchronization pulses that are consecutive after the synchronization pulse being outside a predetermined number range.

Abstract: A connector includes a connector body and bases formed on the lower surface of the connector body. When the connector is fixed to a printed board, a part of each base or the lower surface of the connector body contacts the surface of the printed board in accordance with the thickness of the board. Therefore, the connector can be fixed to any one of printed boards having different thicknesses with common fixing pins.

Abstract: A connector (10) has a holder (11), auxiliary connectors (60) and a retainer (34). The retainer (34) has slanted surfaces (38A) and a vertical wall (39A). The slanted surfaces (38A) engage an opening-end surface (57A) of a mating connector (50) to guide the retainer (34) into a proper position if the auxiliary connectors (60) are inserted to proper positions. However the vertical wall (39A) contacts the opening-end surface (57A) if the auxiliary connectors (60) are not pushed to the proper positions. Thus, the fitting operation cannot be completed and the improperly inserted auxiliary connector (60) is detected.

Abstract: There is provided a male contact having improved electrical contact reliability with a female contact. The male contact has a mating section capable of being formed compactly using a plate member having a plate thickness satisfying a desired strength requirement. The male contact 1 has a mating section 10 formed in such a manner that two plate members 11 and 12, which individually extend from a base 20, are superimposed on one another by folding on the base 20. The mating section 10 has flat sections 15 extending in a mating direction P, wherein outer surfaces of the two plate members 11-1 and 12-1 are formed flat. A tip 13 of one of the two plate members 12 is folded to overlap a tip 14 of the other plate member 11. This feature makes it hard to open the plate members 11 and 12 when the male contact is mated with the female contact.

Abstract: A connector (10) has a holder (11), auxiliary connectors (60) and a retainer (34). The retainer (34) has slanted surfaces (38A) and a vertical wall (39A). The slanted surfaces (38A) engage an opening-end surface (57A) of a mating connector (50) to guide the retainer (34) into a proper position if the auxiliary connectors (60) are inserted to proper positions. However the vertical wall (39A) contacts the opening-end surface (57A) if the auxiliary connectors (60) are not pushed to the proper positions. Thus, the fitting operation cannot be completed and the improperly inserted auxiliary connector (60) is detected.

Abstract: A waterproof resilient plug (20) has a trunk portion (11) to be brought into close contact with the inner circumferential surface of a terminal insertion hole (C) and a fixing portion (12) extending from the leading end of the trunk (11) and to be pressed against the outer circumferential surface of a wire (W) by insulation barrels (20a). The plug (20) is formed along its longitudinal axis with a wire insertion hole (13) that can be brought into close resilient contact with the outer surface of the (W). An inner diameter of the wire insertion hole (13) aligned with the fixing portion (12) is smaller than the one at the side of trunk (11), whereby the fixing portion (12) can be held strongly in close contact with the outer surface of the wire (W).

Abstract: A waterproof resilient plug (20) has a trunk portion (11) to be brought into close contact with the inner circumferential surface of a terminal insertion hole (C) and a fixing portion (12) extending from the leading end of the trunk (11) and to be pressed against the outer circumferential surface of a wire (W) by insulation barrels (20a). The plug (20) is formed along its longitudinal axis with a wire insertion hole (13) that can be brought into close resilient contact with the outer surface of the wire (W). An inner diameter of the wire insertion hole (13) aligned with the fixing portion (12) is smaller than the one at the side of trunk (11), whereby the fixing portion (12) can be held strongly in close contact with the outer surface of the wire (W).

Abstract: A connector includes a connector body and bases formed on the lower surface of the connector body. When the connector is fixed to a printed board, a part of each base or the lower surface of the connector body contacts the surface of the printed board in accordance with the thickness of the board. Therefore, the connector can be fixed to any one of printed boards having different thicknesses with common fixing pins.

Abstract: There is provided a male contact which is high in reliability of an electric contact with the female contact and has a mating section capable of being formed with compactness using a plate member having a plate thickness satisfying a desired strength. The male contact 1 has a mating section 10 formed in such a manner that two sheets of plate members 11 and 12, which individually extend from a base 20, are superposed on one another by folding on said base 20. Said mating section 10 has flat sections 15 extending in a mating direction P, wherein outer surfaces of said two sheets of plate members 11-1 and 12-1 are formed flat. A tip 13 of one 12 of said two sheets of plate members is folded to overlap a tip 14 of another plate member 11. This feature makes it hard to open the plate members 11 and 12 when the male contact is mated with the female contact.

Abstract: A terminal cap (10) is provided to prevent erroneous use of a booster cable to connect batteries that have different specifications. The terminal cap (10) is mounted to cover a battery terminal (T) to be connected with one of electrodes of a 32V-battery. The terminal cap (10) has protection walls (20) that extend from a first accommodating portion (11a) for accommodating a connecting portion (7) of the battery terminal (T). The protection walls (20) are formed to be higher than a threaded shaft (1) of the electrode. Thus, even if an attempt is made to erroneously connect a booster cable, the protection walls (20) will interfere with the booster cable and prevent connection with the electrode located inside the protection walls (20).

Abstract: Cavities capable of housing terminal fittings connected with the ends of electric wires W are provided inside of a housing. A rear assembly is assembled at the rear of the housing. The rear assembly includes a cover formed of a quality of material having no elasticity and a waterproof member formed of a quality of material having elasticity. The waterproof member further includes a wire seal part that surrounds and waterproofs electric wires, and a housing seal part that seals between the two housings. A clearance is provided about a periphery between the outer peripheral face of the wire seal part and the housing seal part. Even if the material of the wire seal part is deformed during the insertion operation of the electric wires, the insertion operation of the electric wires can be smoothly carried out to the last wire because the clearance absorbs the deformation of the entire wire seal part.

Abstract: A connector has a housing (2) with cavities (4) for accommodating both crimping and insulation-displacement terminal fittings (5, 6). Locks (15) extend into the cavities (4) to elastically engage the terminal fittings (5, 6). A retainer mount opening (17) extends through an outer wall of the housing (2) and communicates with the cavities (4), and a retainer (3) is mounted in the opening (17) for doubly locking the terminal fittings (5, 6). Connecting portions (8) of the same shape are provided at the front of the terminal fittings (5, 6). The height of insulation-displacement portions (7) is shorter than that of the connecting portion (8) in the insulation-displacement terminal fitting (5), and terminal locks (18) of the retainer (3) engage with steps (8A) at the rear of the connecting portions (8). The retainer (3) can be pushed to a full locking position after the terminal fittings (5, 6) are mounted with the housing (2) to redundantly lock the terminal fittings (5, 6) in the cavities (4).

Abstract: A battery (B) includes electrodes (11a, 11b) and engaging portions (10a, 10b) formed by recessing portions of the battery (B) around the electrodes (11a, 11b), and recesses (14a, 14b, 23a, 23b) are formed in side surfaces of the engaging portions (10a, 10b). The recesses (14a, 14b, 23a, 23b) are symmetrically arranged in the left and right engaging portions (10a, 10b). Transversely symmetrical identification pieces (19a, 19b) project from the leading ends of terminals (15a, 15b). In the case of a correct correspondence of the electrodes (11a, 11b) and the terminals (15a, 15b), the identification pieces (19a, 19b) fit into the recesses (14a, 14b, 23a, 23b), enabling assembling of the terminals (15a, 15b) with the electrodes (11a, 11b). In the case of an incorrect correspondence, the identification pieces (19a, 19b) cannot be fitted into the recesses (14a, 14b, 23a, 23b) and interfere with the upper surface of the battery (B), making assembling impossible.

Abstract: A connector has a housing (2) with cavities (4) for accommodating both crimping and insulation-displacement terminal fittings (5, 6). Locks (15) extend into the cavities (4) to elastically engage the terminal fittings (5, 6). A retainer mount opening (17) extends through an outer wall of the housing (2) and communicates with the cavities (4), and a retainer (3) is mounted in the opening (17) for doubly locking the terminal fittings (5, 6). Connecting portions (8) of the same shape are provided at the front of the terminal fittings (5, 6). The height of insulation-displacement portions (7) is shorter than that of the connecting portion (8) in the insulation-displacement terminal fitting (5), and terminal locks (18) of the retainer (3) engage with steps (8A) at the rear of the connecting portions (8). The retainer (3) can be pushed to a full locking position after the terminal fittings (5, 6) are mounted with the housing (2) to redundantly lock the terminal fittings (5, 6) in the cavities (4).

Abstract: A battery (B) includes electrodes (11a, 11b) and engaging portions (10a, 10b) formed by recessing portions of the battery (B) around the electrodes (11a, 11b), and recesses (14a, 14b, 23a, 23b) are formed in side surfaces of the engaging portions (10a, 10b). The recesses (14a, 14b, 23a, 23b) are symmetrically arranged in the left and right engaging portions (10a, 10b). Transversely symmetrical identification pieces (19a, 19b) project from the leading ends of terminals (15a, 15b). In the case of a correct correspondence of the electrodes (11a, 11b) and the terminals (15a, 15b), the identification pieces (19a, 19b) fit into the recesses (14a, 14b, 23a, 23b), enabling assembling of the terminals (15a, 15b) with the electrodes (11a, 11b). In the case of an incorrect correspondence, the identification pieces (19a, 19b) cannot be fitted into the recesses (14a, 14b, 23a, 23b) and interfere with the upper surface of the battery (B), making assembling impossible.

Abstract: A terminal cap (10) is provided to prevent erroneous use of a booster cable to connect batteries that have different specifications. The terminal cap (10) is mounted to cover a battery terminal (T) to be connected with one of electrodes of a 32 V-battery. The terminal cap (10) has protection walls (20) that extend from a first accommodating portion (11a) for accommodating a connecting portion (7) of the battery terminal (T). The protection walls (20) are formed to be higher than a threaded shaft (1) of the electrode. Thus, even if an attempt is made to erroneously connect a booster cable, the protection walls (20) will interfere with the booster cable and prevent connection with the electrode located inside the protection walls (20).